Asus Dual Pentium II Department Server AP2500 Hardware Reference Manual
AP2500 Dual Pentium î II Department Server Hardware Reference Guide
AP2500 Hardwar e Refer ence Guide 2 User's Notice Product Name: AP2500 Manual Revision: 1.00 E320 Release Date: December 1998 No part of this manual, including the products and software described in it, may be repro- duced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup pur - poses, without the express written permission of ASUST eK COMPUTER INC. (âÂÂASUSâÂÂ). ASUS PROVIDES THIS MANUAL âÂÂAS ISâ WITHOUT W ARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED T O THE IMPLIED W ARRANTIES OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P AR- TICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECT ORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDEN- T AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DA T A, INTERRUPTION OF BUSI- NESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT . Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair , modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. Products and corporate names appearing in this manual may or may not be registered trade- marks or copyrights of their respective companies, and are used only for identification or explanation and to the ownersâ benefit, without intent to infringe. ⢠Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. ⢠Adaptec, AHA, EZ-SCSI, and AIC is a registered trademark of Adaptec, Inc. ⢠Sound Blaster , SB16, A WE32, A WE64D and SB-LINK are trademarks of Creative T echnology Ltd. ⢠Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation. ⢠IBM and OS/2 are registered trademarks of International Business Machines. ⢠W indows and MS-DOS are registered trademarks of Microsoft Corporation. ⢠T rend and ChipA wayV irus are trademarks of T rend Micro, Inc. The product name and revision number are both printed on the product itself. Manual revi- sions are released for each product design represented by the digit before and after the period of the manual revision number . Manual updates are represented by the third digit in the manual revision number . For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS at http://www .asus.com.tw or through any of the means indicated on the following page. SPECIFICA TIONS AND INFORMA TION CONT AINED IN THIS MANUAL ARE FUR- NISHED FOR INFORMA TIONAL USE ONL Y , AND ARE SUBJECT T O CHANGE A T ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COM- MITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THA T MA Y APPEAR IN THIS MANUAL, INCLUD- ING THE PRODUCTS AND SOFTW ARE DESCRIBED IN IT . Copyright é 1998 ASUST eK COMPUTER INC. All Rights Reserved.
AP2500 Hardwar e Refer ence Guide 3 ASUS Contact Information ASUST eK COMPUTER INC. Marketing Address: 150 Li-T e Road, Peitou, T aipei, T aiwan 1 12 T elephone: 886-2-2894-3447 Fax: 886-2-2894-3449 Email: info@asus.com.tw T echnical Support Fax: 886-2-2895-9254 Email: tsd@asus.com.tw WWW : www .asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS Newsroup: news2.asus.com.tw ASUS COMPUTER INTERNA TIONAL Marketing Address: 6737 Mowry A venue, Mowry Business Center , Building 2 Newark, CA 94560, USA Fax: 1-510-608-4555 Email: info-usa@asus.com.tw T echnical Support Fax: 1-510-608-4555 BBS: 1-510-739-3774 Email: tsd-usa@asus.com.tw WWW : www .asus.com FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER GmbH Marketing Address: Harkort Str . 25, 40880 Ratingen, BRD, Germany T elephone: 49-2102-44501 1 Fax: 49-2102-442066 Email: info-ger@asus.com.tw T echnical Support Hotline: 49-2102-499712 BBS: 49-2102-448690 Email: tsd-ger@asus.com.tw WWW : www .asuscom.de FTP: ftp.asuscom.de/pub/ASUSCOM
AP2500 Hardwar e Refer ence Guide 4 CONTENTS I. Introduction .............................................................................. 7 This Reference Guide ............................................................. 7 Sections .............................................................................. 7 Symbols .............................................................................. 7 This Server .............................................................................. 8 Component Checklist .............................................................. 8 Features .................................................................................. 9 Safety and W arning ............................................................... 10 Static-Sensitive Devices ................................................... 10 T ools Required ....................................................................... 1 1 Preparation ............................................................................. 1 1 II. System Components ............................................................ 12 Server Front Side .................................................................. 12 Server Back Side ................................................................... 13 Chassis Security ............................................................... 13 Chassis Panels ................................................................. 14 Chassis Circulation System .............................................. 15 Rear Cooling Fans ............................................................ 15 Rear Cooling Fan Control Board ...................................... 16 Rear Cooling Fan Control Board Layout ........................... 16 Rear Cooling Fan Control Board Settings ........................ 17 Front Cooling Fans ........................................................... 17 Message LED Description ..................................................... 18 Front Cooling Fan Control Board .......................................... 18 Fixed Storage Device T ray .................................................... 19 Fixed Device Bay Cover Clips .......................................... 19 Fixed Device Bay Cover ................................................... 19 Fixed Storage Devices .......................................................... 20 Floppy Drive and CD-ROM ............................................... 20 Floppy Drive and Storage Device Spacers ....................... 20 Hot-Swap T rays ..................................................................... 21 Hot-Swap Bay ....................................................................... 23 Hot-Swap T ray ....................................................................... 23 SCSI Backplane .................................................................... 24 SCSI Board Placement ..................................................... 24
AP2500 Hardwar e Refer ence Guide 5 Contents SCSI Board Power Installation ........................................ 24 SCSI ID Setting ................................................................. 25 SCSI ID Dip Switches ....................................................... 27 SCSI Information ................................................................... 27 SCSI Connections ............................................................ 27 SCSI T ermination .............................................................. 27 SCSI ID Jumpers .............................................................. 27 SCSI ID Priority ................................................................. 27 Motherboard Securing ...................................................... 28 Device Cables ....................................................................... 29 Cable Connections ........................................................... 29 Card-Secure Module ......................................................... 30 Floppy Disk Drive (1.44MB) .............................................. 31 IDE Cabling ....................................................................... 31 CD-ROM Disk Drive (IDE) ................................................ 31 Ultra2 SCSI Disk Drive ..................................................... 32 External Ultra2 SCSI T erminator ....................................... 32 Expansion Cards ................................................................... 32 Power Supply ........................................................................ 34 Power Supply On and Of f ................................................. 34 Power Supply Mounting .................................................... 34 Starting the Server ................................................................ 35 III. Appendix ............................................................................... 36 SCSI Cable Limits ................................................................. 36 Power Supply Information ..................................................... 37 Input V oltage ..................................................................... 37 Output Current Capacity ................................................... 37 Output V oltage Regulation, Ripple, and Noise ................. 37 Regulatory Information .......................................................... 37 Safety ................................................................................ 37 EMI ................................................................................... 37 Glossary ................................................................................ 38 Power Supply Requirement Calculation T able ...................... 39
AP2500 Hardwar e Refer ence Guide 6 FCC & DOC Compliance Federal Communications Commission Statement This device complies with FCC Rules Part 15. Operation is subject to the following two conditions: ⢠This device may not cause harmful interference, and ⢠This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa- tion. This equipment generates, uses and can radiate radio frequency ener gy and, if not installed and used in accordance with manufacturer's instructions, may cause harmful interference to radio communications. However , there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the inter - ference by one or more of the following measures: ⢠Re-orient or relocate the receiving antenna. ⢠Increase the separation between the equipment and receiver . ⢠Connect the equipment to an outlet on a circuit dif ferent from that to which the receiver is connected. ⢠Consult the dealer or an experienced radio/TV technician for help. W ARNING! The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Cana- dian Department of Communications.
AP2500 Hardwar e Refer ence Guide 7 I. Introduction This Reference Guide Y ou are reading the AP2500 Hardware Reference Guide. This hardware reference guide provides information and procedures on the various com- ponents used in this server . Some components shown in this reference guide are optional and may be individually purchased to complete the server . This guide is intended for experienced users and integrators with hardware knowl- edge of personal computers. Y ou should also read all documentation and manuals included with this server and with your separately purchased com- ponents. Sections There are only a few sections in this reference guide as follows: I. Introduction This section gives general and startup information and features for this server . II. Components This is the main section which gives descriptions of each server component. III. Appendix This section gives you additional information to help plan your server . Symbols A few symbols are used throughout this guide that you should be aware of to complete certain tasks safely and completely . These symbols indicate the degree of importance of a procedure or information. NOTE: T ips and information to aid in completing a task. IMPOR T ANT : Information that MUST be followed in order to com- plete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. W ARNING: Information to prevent injury to yourself when trying to complete a task. I. Introduction
8 AP2500 Hardwar e Refer ence Guide I. Introduction This Server AP2500 is a department server configured on the ASUS P2B-D2 smart moth- erboard which uses the 440BX chipset from Intel which supports the Pen- tium II processor and 100MHz front side bus in order to support even the most complicated server tasks. Component Checklist If assembling this server by yourself, it is important to prepare all the server components before starting. This will save a great deal of time by not hav- ing to hunt down components. The following checklist provides a guideline as to the necessary components for a server . Standard components Chassis: ASUS AS-30 T ower Power Supply: 400W A TX Motherboard: ASUS P2B-D2 CD-ROM Drive: ASUS 40X Floppy Drive: 1.44MB Cables: Power , IDE, Floppy , 50&68pin SCSI, CD audio cable SCSI T erminator: Passive terminator for 68pin SCSI cables. User â s Manuals: CD-ROM, SCSI, Motherboard, Hardware Guide Drivers/Utilities: SCSI, CD-ROM, Motherboard Required components (you may purchase from ASUS or from a third party) Processor (CPU): (optional Intel Pentium II 233MHz-450MHz) Memory Modules: (optional 16, 32, 64, 128, 256MB SDRAM) Hard drive Drives: (optional 4/9GB Ultra2 or Fast/Ultra-W ide SCSI) Optional components (you may purchase from ASUS or from a third party) Ethernet Card: (optional ASUS PCI-L101) RAID Card: (optional ASUS PCI-DA2100A) I. Introduction
AP2500 Hardwar e Refer ence Guide 9 I. Introduction Features The following are highlights to this server â s many features. For additional features and details, read the motherboard User â s Manual included with this server package. ⢠Pr ocessor: Dual Intel Pentium II processors provide up to 450MHz on each processor for extreme server processing speeds. ⢠I2O: Includes Intelâ s i960RD I/O processor with 32KB NVRAM, 4x512KB Flash EEPROM, and 2 SIMM slots for up to 256MB of memory . ⢠Memory: Four DIMM slots with up to 1GB SDRAM with ECC. ⢠Onboard IDE: Up to 33MB/sec IDE transfer with UltraDMA/33. ⢠Chipset: Intel 440BX supports up to 100MHz front side bus. ⢠Onboard LAN: Onboard Intel 10/100Base-TX Fast Ethernet. ⢠Onboard SCSI: Onboard Adaptec 7890 SCSI with three onboard con- nectors to independently connect 68-pin Ultra2 SCSI devices, 68-pin W ide-SCSI devices, and 50-pin Narrow-SCSI devices. ⢠SCSI Backplane: Ultra2 SCSI SCA backplane with remote SCSI ID dip switches and power to support up to 5 Ultra2 SCSI SCA hard drives. ⢠Device Bays: Support one floppy , one CD-ROM, two additional fixed devices, and five hot-swap SCA hard disk drives. ⢠Onboard Hardwar e Monitor: Provides information for system and processor voltages, fan status, temperature, chassis intrusion, and pro- vides automatic system restart. ⢠ASMA and Intel LDSM: Provides server monitoring, management, and control. ⢠Onboard VGA: Onboard S3 T rioV2/DX VGA with 1 MB upgradeable to 2 MB. I. Introduction
10 AP2500 Hardwar e Refer ence Guide I. Introduction Safety and W arning Observe the following safety instructions any time you are connecting or disconnecting devices to the workstation. W ARNING: An electrical outlet that is not correctly wired could place hazardous voltage on metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock. Before installing or removing signal cables, ensure that the power cables for the system unit and all attached devices are unplugged. When adding or removing any additional devices to or from the system, ensure that the power cables for those devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. Use one hand, when possible, to connect or disconnect signal cables to pre- vent a possible shock from touching two surfaces with different electrical potentials. During an electrical storm, do not connect cables for display stations, print- ers, telephones, or station protectors for communications lines. T o prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. W ARNING: This product is equipped with a three-wire power cable and plug for the user â s safety . Use the power cable in conjunction with a prop- erly grounded electrical outlet to avoid electrical shock. Static-Sensitive Devices CAUTION: Motherboards, adapters, and disk drives are sensitive to static electricity discharge. These devices are wrapped in antistatic bags to prevent this damage. T ake the following precautions: ⢠If you have an antistatic wrist strap available, use it while handling the device. ⢠Do not remove the device from the antistatic bag until you are ready to install the device in the system unit. ⢠W ith the device still in its antistatic bag, touch it to a metal frame of the system. ⢠Grasp cards and boards by the edges. Hold drives by the frame. A void touching the solder joints or pins. ⢠If you need to lay the device down while it is out of the antistatic bag, lay it on the antistatic bag. Before picking it up again, touch the anti- static bag and the metal frame of the system unit at the same time. ⢠Handle the devices carefully in order to prevent permanent damage. I. Introduction
AP2500 Hardwar e Refer ence Guide 11 I. Introduction I. Introduction T ools Required A few items are needed to install or remove the components in this server . ⢠Phillips (cross) screwdriver ⢠Standard (flat) screwdriver ⢠Antistatic wrist strap Preparation 1. Unpack your server , do not connect the power cord. IMPOR T ANT : Most servers use an A T power supply that has a fixed ON and OF F switch located on the front. This server uses an A TX power supply that is normally OF F until an electrical signal is given to the power supply through a momentary switch located on the front of the server . There is always a standby power in the power supply in order for A TX power supply features to work, and therefore removing the power cord is necessary to prevent electrical shocks when working on the server components. 2. Unlock the padlock if one is used. This server is equipped with a lock- able front door to prevent unauthorized access. Open the side panel. 3. Install final server components such as CPU, Memory , Hard Disk Drives, expansion cards. Use this hardware reference guide along with your motherboard manual in order to make these installations. 4. Connect a Keyboard and Mouse (purchased separately) 5. Connect a VGA-compatible monitor (purchased separately) 6. Connect a printer to the parallel port if desired. 7. Connect server to network (an optional network card is needed) W ARNING: T o prevent electrical shock or fire, be sure not to plug tele- communications/telephone cables into the network RJ45 connector in the server if one is installed. 8. Set the power supply input voltage to either 1 15V for 1 10V -120V areas or 130V for 120V -140V areas. CAUTION: The voltage must be set correctly or damage may occur . 9. Connect the included power cord to the server â s power supply . 10. Connect the server to a grounded (three pronged) AC power source such as a UPS or power strip (preferably with sur ge protection). W ARNING: This server is designed for connection to a grounded (earthed) outlet. T o reduce the risk of electrical shock or damage to your server , do not bypass the grounding plug.
12 AP2500 Hardwar e Refer ence Guide II. Components Server Front Side The front side of the server is provided to show the front exterior compo- nents of this server . The chassis is made of strong rust-resistant metal and covered with a protective ivory surfacing. II. System Components W ARNING: Always remove the power cord when working on the server internal components to prevent electrical shocks or damage to electrical components. A TX power supplies that are plugged into an AC outlet always have standby power even when the server is powered OFF . Server front side Power LED A TX Power Button HDD Access LED Floppy Drive CD-ROM Drive Metal Door Lock Stabilizers Metal Security Door Hot Swap T ray Metal Side Access Panel Hard Drive Fan Module Side Access Panel Screw
AP2500 Hardwar e Refer ence Guide 13 II. Components Server Back Side The back side of the server is provided to show the back exterior compo- nents of this server . II. System Components Chassis Security T o protect the server chassis from unauthorized intrusion, the chassis front panel can be locked with the built-in keylock. Chassis intrusion switches can be connected to the motherboardâ s âÂÂchassisâ connector to allow moni- toring of the chassis side panelsâ open/close status. If either one or both of the side panels are opened, the motherboardâ s onboard hardware monitor can provide alerting and logging with the provided management software. A TX Power Supply AC Power In Connector Parallel Port PS/2 Mouse Serial Port COM1 Power Supply Fan USB Ports 1 and 2 Rear Fan Module Server back side RAID Controller (Optional) T op Access Panel T op Access Panel Screw VGA Connector Rear Fan Module PS/2 Keyboard RJ45 PORT(LAN)
14 AP2500 Hardwar e Refer ence Guide II. Components Chassis Panels There are two identical side panels on the chassis, one on each side. Each panel is secured by two lar ge thumb screws on the front of the server . T o open the left side of the panel (see the left view), remove the side panel screw , then pull the handle outward while pulling the panel forward. T o open the right panel, the front door must be removed by pushing down on the hinge spring. II. System Components Server left side Rear Fan Module SCSI RAID Card (Optional) A TX Power Supply Chassis Intrusion Micro Switch Front door hinge spring Opening the side panel W ith the left panel removed, you should see the following components if you purchased a complete server .
AP2500 Hardwar e Refer ence Guide 15 II. Components Chassis Circulation System The circulation system cools the hard disk drives by bringing fresh air in from the side of the server and forcing the hot air out through the back. The server â s air circulation system is comprised of two 3 inch (8 cm) fans mounted in a removable module which brings cool air in from the outside to cool the hard disk drives. Another set of two 2 1/4 inch (6 cm) cooling fans mounted on the chassis, forces the warm air out of the chassis. The two fans in each module provides redundancy in order to increase air flow as well as insure continued circulation if one fan should fail. This circulation system should ensure that the air surrounding the hard disk drives are kept below 122ÃÂF (50ÃÂC) to prevent hard disk failures. Rear Cooling Fans The system fan modules on the rear is held by two screws and four latches on the interior of the chassis. There are four screws used to secure the fan into the individual frames. The fan moduleâ s operating status can be viewed through the ASUS ASMA software. If an individual fan fails, remove the fan and send it back to the vendor for replacement. If both fans fail, it may be that the fan control board needs replacing. If the fans do not work after replacing both of them, remove the control board and send it back to your vendor for replacement. II. System Components Individual fan with frame Screw Locations Usually , the rotation of the fan sends air toward the manufacturer â s label on the center of the fan. Four Latches T wo Screws Rear fan modules T op Fan Bottom Fan Air flows out through the back
16 AP2500 Hardwar e Refer ence Guide II. Components Rear Cooling Fan Control Board Layout The rear fan control board, although small, has many functions as shown. Fan power connector Fan control settings Power input connector Fan status signal connector Rear Cooling Fan Control Board The rear fans are controlled and monitored by a control board. The fan con- trol board requires power input from the power supply which allows the individual fans to obtain their power when connected to the control board. The control board also sends fan status information to the LEDs located on the front of the server and to the ASMA software. The fan control boardâ s cable connections are shown below . II. System Components (Reserved Connector) Fan control board with cable connections
AP2500 Hardwar e Refer ence Guide 17 II. Components Front Cooling Fans The hard disk drive fan module can be removed by using a small screw driver to push the eject lever in the fan module. The eject lever is behind a small hole as circled below . There are two individual 2 1/4 inch (6cm) fans secured by four screws on each fan. The ASMA software will report an error message when any of these two fans malfunction. II. System Components Rear Cooling Fan Control Board Settings The rear fan control board has DIP switches to allow controlling the number of fans and the control board. DIP Switch SET1 Fan contr ol setting ON (momentarily) Reset Contr ol Boar d OFF Normal (Default) SET2 SET3 SET4 Number of Fans ON ON ON 1 ON ON OFF 2 (Default) ON OFF ON 3 ON OFF OFF 4 OFF ON ON 5 OFF ON OFF 6 OFF OFF ON 7 OFF OFF OFF 8 The control boards mount with the component side face down Removing the front fan module The front fan module frame
18 AP2500 Hardwar e Refer ence Guide II. Components Front Cooling Fan Control Board The front cooling fansâ main purpose is to cool the hard disk drives. These fans also have a fan control board like the rear cooling fans. The front cool- ing fan module consists of a control board, a hard disk drive LED status board, and two cooling fans. The message LED board mounted in the front of the cooling fan module consists of five sets of LEDs to represent the status of up to five hard disk drives. Each set has three LEDs which shows the power , activity , and status of each hard disk drive. II. System Components LED Board Header (For cable to connect to fan board) Hard drive Power LED (Green) Hard drive Access LED (Y ellow) Hard drive Status LED (Red) Hard disk drive message board pin 1 3-pin Fan Header Gold Finger Connector to the SCSI Back plane Board LED Board Header (For cable to connect to LED board) Front cooling fan control board pin 1 Power LED Status LED Description of f off power subsystem OK and ready for hard drive insertion on off Hard disk drive is OK for operation on on Hard disk drive failure (*) on fast flash RAID in rebuilding (*) on slow flash Hot-spare hard disk drive (*) fast flash on Hard disk drive power failure/short circuit fast flash fast flash Fan failure Message LED Description * Must be provided by RAID controller â s SAF-TE function.
AP2500 Hardwar e Refer ence Guide 19 II. Components Fixed Storage Device T ray Internal fixed storage devices are mounted on removable trays. There are four available, one for a floppy device and another three for full-size de- vices. There are six screws provided (as circled) for mounting a 4 inch de- vice such as a floppy or hard disk drive. Four screws are provided (as boxed) for mounting a 6 inch device such as a CD-ROM or tape drive. Fixed Device Bay Cover After releasing the device bay cover clips, pry the cover away from the chassis using a screw driver from the front. Fixed Device Bay Cover Clips The device bay panel is held by two plastic clips on each side. Press these clips in with a screwdriver to release. Removing the device bay cover clips Fixed storage device tray II. System Components Removing the device bay cover clips
20 AP2500 Hardwar e Refer ence Guide II. Components Fixed Storage Devices Floppy Drive and CD-ROM The floppy drive fits in the topmost bay along with the power button. A CD- ROM can fit into either the second, third, or fourth bay from the top. A metal clip on each side of the device tray secures the tray in place. Press inward to release the clips. The tray slides in or out on the side rails. Removing a floppy or CD-ROM drive II. System Components Floppy Drive and Storage Device Spacers Spacers are required for cosmetics only . A floppy drive spacer is used to cover the floppy drive and power button. A standard storage device spacer is used to cover the CD-ROM, tape drive, or additional CD-ROMs. Y ou should purchase an extra spacer for each storage device. Floppy Drive Spacer Fixed Device Spacer Floppy and CD-ROM drive spacers Floppy drive with spacer CD-ROM with spacer Floppy and CD-ROM drives
AP2500 Hardwar e Refer ence Guide 21 II. Components Hot-Swap T rays Maximum uptime in a server requires devices that can be easily replaced or âÂÂswapped.â The main hard drives are mounted in internal hot-swap trays for easy replacement. The AP2500 hot-swap bay has two different models. The 1.6 inch SCA hot-swap bay can accommodate three 1.6 inch hard disk drives. The 1.0 inch SCA hot-swap bay can accommodate five 1.0 inch hard disk drives. II. System Components 1.6â SCA Hot-Swap Bay 1.6â tray with 1.6â SCA hard drive 1.0â SCA Hot-Swap Bay 1.0â tray with 1.0â SCA hard drive
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AP2500 Hardwar e Refer ence Guide 23 II. Components II. System Components Hot-Swap Bay There are two levers on the front of the hot swap tray to help re- lease or lock the tray . T o remove the tray , extend both levers and pull on both levers. T o install the tray , push the tray firmly into the bay with the levers extended, then close the levers. Three hard disk drive LEDs are located in- side the system fan module for each hard disk drive tray . LEDs provide information on the power and activity status of the hard disk drive. When power is received by the hot-swap trayâ s connector board, the power LED will light. When data is written or read to or from the contained hard disk drive, the activity LED will flash proportional to the amount of data transferred. Hot-Swap T ray Each hot-swap tray provides an alumi- num carrier for a single SCSI hard disk drive with a maximum height of 1 inch or 1.6 inch (depending on model), a width of 4 inches, and a length of 6 inches. The aluminum tray provides pro- tection and maximum heat dissipation for almost all types of high speed SCSI disk drives. The provided screws are needed to secure the hard disk drive into the tray .
24 AP2500 Hardwar e Refer ence Guide II. Components II. System Components SCSI Backplane The SCSI backplane of this server is comprised of one SCSI board(DA- BP5) with Ultra2 SCSI connectors, power inputs, and SCSI ID dip switches. This configuration allows Ultra2 SCSI SCA hard disk drives to be docked into the server using a SCA connector . The SCSI board(DA-BP5) dose not has a terminator build in so the included terminator block must be used on the end connector .(see picture below) SCSI Board Placement There are six screws on the SCSI board. The extended expansion card guide must be removed before the SCSI board can be removed. The SCSI board has one side with two connectors and three power connectors and another side with either three or five SCSI SCA connectors. Face the side with the power connector toward the motherboard. In order to ensure proper orienta- tion of the SCSI board, the screw holes are not placed symmetrically . SCSI Board Power Installation There are three power connectors on the front side of the SCSI board. The PWR1 and PWR2 connectors have to be connected to the power supply , the PWR3 connector is a spare power connector which will supply power if PWR1 and/or PWR2 connectors fail to supply power . The voltage distribu- tion for the three power connectors are not equal due to the enormous volt- age and current requirements by the SCSI drives. SCSI ID Select DIP Switch PWR3 Connector PWR2 Connector PWR1 Connector The provided terminator must be placed on this bottom SCSI connector .
AP2500 Hardwar e Refer ence Guide 25 II. Components II. System Components SCSI ID Setting SCSI ID settings are made through DIP switches located on the SCSI board. The SCSI board has four dip switches to set the hard driveâ s power on delay and SCSI ID. SCSI ID Setting RMT_ST ART DL Y_ST ART description of f off Motor up when power on on off Motor up after ST ART UNIT command of f on Motor up after 12xSCSI ID ms on on Reserved IDSEL1 IDSEL0 Slot1 Slot2 Slot3A/3B Slot4 Slot5A/5B off of f Reserved on on 15 12 1 1 8 3 on off 14 9 6 4 1 of f on 13 10 5 2 0 Hard Disk Drive Power On Delay 1â T ray Connector #5 1â T ray Connector #4 1â T ray Connector #3 1â T ray Connector #2 1â T ray Connector #1 1.6â T ray Connector #5B 1.6â T ray Connector #3B 1.6â T ray Connector #1
26 AP2500 Hardwar e Refer ence Guide II. Components II. System Components SCSI ID Dip Switches The following illustrates the different possibilities using the dip switches. IDSEL 1=of f IDSEL 0=of f ON IDSEL 1=on IDSEL 0=on ON IDSEL 1=on IDSEL 1=of f ON ON IDSEL 1=of f IDSEL 0=on ON IDSEL1 IDSEL0 Slot1 Slot2 Slot3A Slot4 Slot5A off off Resv . on on 15 12 1 1 8 3 on off 14 9 6 4 1 off on 13 10 5 2 0 ON DL Y_ST ART RMT_ST AR T IDSEL 1 IDSEL 0 1 2 3 4 1 2 3 4 ON Default setting IDSEL 1 off IDSEL 0 on DL Y_ST ART on RMT_ST AR T off IDSEL 1=of f IDSEL 0=of f ON IDSEL 1=on IDSEL 0=on ON IDSEL 1=on IDSEL 1=of f ON ON IDSEL 1=of f IDSEL 0=on ON IDSEL1 IDSEL0 Slot1 Slot3B Slot5B off of f Resv . on on 15 1 1 3 on of f 14 6 1 off on 13 5 0 IMPOR T ANT : If your hard disk drives have terminator jumpers, they must be removed because an external terminator is provided for the SCSI board.
AP2500 Hardwar e Refer ence Guide 27 II. Components II. System Components SCSI Information SCSI Connections Y our server can support up to 15 user installed single-ended SCSI devices. Be sure to include both internal and external SCSI devices in your device setup. Each SCSI device (both internal and external) must have a unique address (or SCSI ID). Check your SCSI device documentation for instruc- tions. Be sure to record all SCSI addresses so that you can prevent SCSI address conflicts. SCSI T ermination SCSI devices are connected together in a âÂÂchainâ by cables. Internal de- vices connect to the motherboard with a 50 pin or 68 pin flat ribbon cable. External SCSI devices may be connected using an external SCSI connector or SCSI card with an external connector . If there are more than one internal or external device, additional devices are connected with cables to form a âÂÂchain.â T erminating the SCSI Bus âÂÂchainâ is necessary for SCSI devices to work properly . SCSI devices normally come with its termination enabled by jumpers or dip switches. Y ou must disable these termination for devices in between the SCSI chain. Ultra2 devices do not have a termination jumper and must be terminated using a terminator on the SCSI cable. The termina- tor must always be on the end of the cable which means that you cannot connect a device on the last connector . SCSI ID Jumpers All SCSI devices, including this motherboard with onboard SCSI, must have a SCSI identification number that is not in use by any other SCSI device. There are sixteen possible ID numbers, 0 through 15. The SCSI ID serves two purposes: ⢠It uniquely defines each SCSI device on the bus. ⢠It determines which device controls the bus when two or more devices try to use it at the same time. SCSI IDs on one channel do not interfere with the IDs on another channel. Y ou can connect up to 15 SCSI devices to this motherboard. Y ou must set a SCSI ID number (ID 0 to ID 15) for each device. Note that the onboard SCSI chipset is also a SCSI device and will also require a SCSI ID number . SCSI devices vary in how they set the ID number . Some use jumpers, others have some kind of selector switch. Refer to the manual for any device you install for details on how to set its ID number . SCSI ID Priority The motherboard has an onboard 16bit single-channel SCSI chipset. SCSI ID 15 has the highest priority , and SCSI ID 0 has the lowest priority .
28 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Motherboard Securing Remove the extended expansion card guide before installing or removing the motherboard. All screws are necessary to provide the needed stabiliza- tion to support all the motherboard expansion cards used in a server . Place four spacers in the ar - eas circled on the chassis. Installed motherboard Place twelve screws in the areas circled on the motherboard. There is a chassis intrusion con- nector here. The chassis provides an micro toggle switch that must be connected to the motherboard for the chassis intrusion detection to work. The motherboard will signal the ASMA software when the side panel is opened. The connec- tion diagram is given here. Chassis Intrusion Switch Motherboardâ s chassis intrusion connector 5VSB Chassis Signal From chassis micro switch spacer
AP2500 Hardwar e Refer ence Guide 29 II. Components II. System Components Cable Connections The cables connect to the motherboard as shown. The motherboard includes onboard SCSI with 68-pin and 50-pin SCSI connectors. RAID connections require the ASUS PCI-DA2100A RAID card. Device Cables Several cables are used for connecting devices in the server . The following picture points out the name of each cable and its suggested location. Plastic keepers protect the cables from contact with the fans and other devices. Make sure that all cables are properly secured. Motherboard with cables connected IDE Cable Cables from devices Floppy Cable 68-pin W ide- SCSI Cables (for RAID card) Plastic Keeper IDE Cable (CD-ROM) System Fan Module Floppy Cable 68-pin W ide-SCSI for onboard SCSI ASUS RAID Card
30 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Card-Secure Module The chassis provides an adjustable expansion card securing rack to help hold expansion cards in their slots. The securing rack module is mounted by four screws on the edge of the server . There are 18 knobs on the module. T urn the knob counter clockwise to extend the metal arm under each knob. Keep turning until the arm is firmly press against the expansion card. T urn the knob clockwise to retract the metal arm. Floppy Disk Drive (1.44MB) The 1.44MB floppy disk drive requires signal and power connections. The power connection is easy since it only fits one way and a latch is available to secure it when fully inserted. The signal cable is tricky because the cable fits in both orientations as well as shifted one direction or the other . The signal cable also has no latch to determine when full insertion is made. Align the red stripes of the signal and power cables so that they face each other . Carefully insert the connector while visually watching the progress so that proper alignment and insertion is made. Red stripe of signal cable Red stripe of power cable 1.44MB floppy disk drive connections Cables connected to devices Knob Metal Arm
AP2500 Hardwar e Refer ence Guide 31 II. Components II. System Components IDE Cabling Proper IDE device operation requires that the IDE ribbon cable does not exceed 18 inches. If only one IDE device is used, connect it to the end of the cable. Remove unused cables from the motherboardâ s IDE connector to ensure proper signal strength. CD-ROM Disk Drive (IDE) The CD-ROM disk drive mounts only in one of the three fixed device bays and requires signal and power connections like that of IDE hard disk drives . The power and signal cable is straightforward with connectors designed to only fit correctly . The red stripe of the signal and power cables should face each other . NOTE: A CD-ROM audio cable is also provided in case you install an au- dio card. The only function of the audio cable is to direct music C D audio sig- nal to your audio card. Computer CD- ROMs have d ata (such as *.wav , *.mpg, *.avi) that travels through the signal cable. Red stripe of signal cable Red stripe of power cable CD-ROM drive connections CD audio output
32 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Ultra2 SCSI Disk Drive The Ultra2 SCSI disk drive has separate signal and power connections. The power connector is the same as standard hard disk drive power . The signal cable is different. For proper signal stability in Ultra2 speeds, a special twisted ribbon cable must be used. Each pair of wires are twisted for signal shield- ing like that of high speed (e.g. category 5) LAN cabling. IMPOR T ANT : Y ou must use Ultra2 SCSI ribbon cables for Ultra2 devices. Ultra2 ribbon cables (may be colored red and white) are similar to wide- SCSI ribbon cables (normally colored gray) but each pair of wire is twisted to reduce signal interference. Ultra2 SCSI hard disk drive connections Red stripe of signal cable Red stripe of power cable External Ultra2 SCSI T erminator T o prevent SCSI signal loss, the provided external SCSI terminator must be used at the end of the 68-pin SCSI cable. 50-pin SCSI cables may also use terminators but usually use termination jumpers on the device itself. Cur - rently W ide-SCSI devices have termination jumpers but Ultra2 devices do not. Some manufacturers ship SCSI devices with the terminator set, others do not. All termination jumpers must be removed along the cable where the external SCSI terminator is used.
AP2500 Hardwar e Refer ence Guide 33 II. Components II. System Components Expansion Cards Expansion cards can be easily installed just like any standard PC computer . Up to 4 PCI or 2 ISA (1 slot is shared allowing a maximum of 5 cards at one time) cards can be installed. One AGP slot is also available for a hardware 3D accelerator with an AGP connector . Expansion Card Installation Pr ocedure: 1. Follow the static precautions described in the front of this manual. 2. Switch OFF your system and all peripheral de- vices and remove the main power cord. 3. Remove the side panel to the chassis. 4. Find an unused expansion slot on the mother - board and unscrew the metal cover plate from the slot and put the screw to one side. 5. Ensure the jumpers (if any) are correctly set on your expansion card 6 . Align the cardâ s connector with the expansion slot on the motherboard and gently lower and push the card into the free slot. 7. Secure the card to the expansion slot with the screw you removed from the metal plate. 8. Attach cables or wires if necessary . 9. Reinstall the side panel if no other work is needed inside the chassis. Female T erminator for SCSI Cable Male T erminator for SCSI board
34 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Power Supply This server has a standard power supply with specifications to meet this server â s motherboard requirements. A clearly marked label gives detailed specifications of the power supply . It is normal practice to remove the power cord before opening the side panel. W ith the power cord removed, you can ensure there are no voltages which can cause shorts while installing or re- moving internal components. CAUTION: Before turning on your server for the first time, set the power supplyâ s voltage. Some products may have auto voltage switching to ac- commodate 220V -240V or 1 10-120V but this power supply must be set manually . The factory default should be on 230V to accommodate the higher voltage but it is safer to visually inspect the switch yourself in case it is not. IMPOR T ANT : For countries using 1 10V -120V , you must slide the switch to 1 15V or else power up is not possible (but no damage will occur). Power Supply On and OFF Normal powering ON and powering OFF of the A TX power supply is done using the momentary A TX power switch located on the front panel which is connected to the motherboard, unlike A T power supplies which uses a per - manent switch on the power supply or chassis. The power supplyâ s main power switch must be turned on before the A TX power switch on the front panel will work. Power Supply Mounting Mounting and unmounting the power supply must be done from the inside as shown below . Four screws are used to secure the power supply to the chassis back side. Power Supply remove screws
AP2500 Hardwar e Refer ence Guide 35 II. Components II. System Components Starting the Server T urn ON the server b y pushing the power button. The power button will snap back when released because A TX power systems have an electrical ON /OF F switch unlike A T systems which require a permanent ON or OF F position. If the Power O n LE D does not light, make sure the power cord is con- nected to the system unit and to a working grounded outlet. When booting your server for the first time, hold the âÂÂDeleteâ key and enter BIOS setup in order to make settings. ISA cards requires that you set âÂÂIRQ XX Used by ISA : Y esâ in BIOS PNP AND PCI SETUP in order for that IRQ to be reserved for your ISA expansion card. Y ou need to set âÂÂBoot Sequence : A, Câ in BIOS FEA TURES SETUP in order to boot from a floppy diskette to setup your hard disk. Insert a bootable floppy diskette and select âÂÂSave & Exit Setupâ from the BIOS main menu. Once your server has properly booted, an âÂÂA:\>â prompt will appear . Use the boot diskettes provided with the server operating system or create your own. If you are planning to use RAID on your server , you need to install a RAID card, such as the ASUS PCI-DA2100A and then run the RAID setup program from a floppy diskette. Reboot your server with the operating system boot disk in order to install drivers for your devices (such as CD-ROM and SCSI de- vices) and install your server operating system. Y ou may be prompted for manufacturer supplied driver diskettes for each device on your server if they are not included in the operating system setup drivers.
III. Appendix SCSI Cable Limits SCSI cables have a limit to the length that it may have. Exceeding the length may cause problems mounting or using any one of the SCSI devices. CAUTION: Exceeding the SCSI cable limits may cause unreliable data transfers even if all the devices are mounted properly . NOTES: ⢠Narrow refers to 50 pin and W ide refers to 68 pin. DonâÂÂt get confused by the width of the connector or cable. ⢠The SCSI ID for devices on one connector cannot be the same as the SCSI ID for devices on the other connectors. None of the devices on any connector can use ID7, which is reserved for the SCSI controller . ⢠A maximum of 15 devices may be connected to the motherboard (three connectors) at one time. The following âÂÂMax Devicesâ are for individual connectors and do not take into account other SCSI devices. Cable Limits Max Data T ransfer Rates Max Devices 1) 12m (29.4ft) Ultra2-SCSI (68 pin 80MB/Sec) 15 2) 3m - 1.5m W ide Ultra-SCSI (68 pin 40MB/Sec) 4 - 8 3) 3m (9.8ft) W ide-SCSI (68 pin 20MB/Sec) 15 4) 3m - 1.5m Narrow Ultra-SCSI (50 pin 20MB/Sec) 4 - 7 5) 3m (9.8ft) Narrow Fast-SCSI (50 pin 10MB/Sec) 7 Notes for the above chart: 1 ) A total of 15 âÂÂUltra2-SCSIâ devices (ID0-ID15) may be connected to the 68- pin Ultra2 connector on the motherboard. NOTE: If connecting Fast/Ultra devices with Ultra2 devices on the Ul- tra2 connector , the entire SCSI bus will be limited to the Ultra SCSI conditions listed above. Mixing SCSI devices is highly not recommended. 2) A total of 8 âÂÂW ide Ultra-SCSIâ devices (ID0-ID15) may be connected to the 68-pin W ide connector if using a 1.5m (4.9ft) cable, but only 4 âÂÂW ide Ultra-SCSIâ devices if using a 3m (9.89ft) cable. Ultra-SCSI technology is unstable over long lenghts, therefore stability will depend on they qual- ity of your cable and devices. 3) A total of 15 âÂÂW ide-SCSIâ devices (ID0-ID15) may be connected to the 68-pin W ide connector . 4) A total of 7 âÂÂNarrow Ultra-SCSIâ devices (ID0-ID6) may be connected to the 50-pin Narrow connector when using 1.5m (4.9ft) cable but only 4 devices when using 3m (9.8ft) cable. Ultra-SCSI technology is un- stable over long lengths, therefore stability will depend on the quality of your cable and devices. 5) A total of 7 âÂÂNarrow Fast SCSIâ devices (ID0-ID7) may be connected to the 50-pin Narrow connector . III. Appendix 36 AP2500 Hardwar e Refer ence Guide
AP2500 Hardwar e Refer ence Guide 37 III. Appendix III. Appendix Power Supply Information Input V oltage Range Min (V) Nom (V) Max (V) Range 1 90 120 132 Range 2 180 230 265 Output Current Capacity Output Nom Out (Vdc) Min (A) Max (A) 1 3.3V 1.4 30* 2 5.0V 2.4 43* 3 12.0V 0.5 12 4 -5.0V 0 0.5 5 -12.0V 0 0.5 * T otal output power for 3.3V and 5V combined shall be 210W Output V oltage Regulation, Ripple, and Noise Output V oltage Limits (Vdc) Ripple/Noise Output Min Nom Max Maximum 1 3.17V 3.30V 3.46V 50mVp-p 2 4.80V 5.00V 5.25V 50mVp-p 3 1 1.40V 12.00V 12.60V 120mVp-p 4 -4.50V -5.00V -5.50V 120mVp-p 5 -10.92V -12.00V -13.20V 120mVp-p 6 4.75V 5.00Vsb 5.25V 120mVp-p Regulatory Information Safety The power system meets all applicable clauses for UL 1950 2nd edition without D3 deviations. The power system passes all tests for CUL and TUV safety . EMI The power system, operating with resistive load, meets FCC class B and CISPR 22 class B conducted limits.
38 AP2500 Hardwar e Refer ence Guide III. Appendix III. Appendix Power Supply Requirement Calculation T able Item V olts Amp x Qty . = T otal Amp W atts (5V) W atts (12V) 209.55 3.6 Hard Drive 5.0V 1.3 x = 12V 1.5 x = CD-ROM 5.0V x = 12V x = T ape Drive 5.0V x = 12V x = Floppy Drive 5.0V x = 12V x = System Fans 5.0V x = 12V 0.3 x = 0.6 7.2 Other 3.3V x = 5.0V x = 12V x = T otal Power T otal Motherboard Power
AP2500 Hardwar e Refer ence Guide 39 III. Appendix Glossary Byte (Binary T erm) One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric character , punctuation mark, or other symbol. CHKDSK (Check Disk) An MS-DOS command that gives you information such as disk space, files, and directories on your hard disk drive. COM Port COM is a logical device name used to designate the computer serial ports. Pointing devices, modems, and infrared modules can be connected to COM ports. Each COM port is configured to use a dif ferent IRQ and address assignment. CPU (Central Pr ocessing Unit) The CPU, sometimes called âÂÂProcessor ,â actually functions as the âÂÂbrainâ of the computer . It interprets and executes program commands and pro- cesses all the data stored in memory . Currently , there are socket 7, slot 1, and slot 2 CPUs. Intel Pentium Processors fit on socket 7, Intel Pentium II fit on slot 1, and Intel Xeon fit on slot 2. FDISK (Fixed Disk Setup Pr ogram) An MS-DOS program used to partition the hard disk drive. FDISK is re- quired to setup a new non-RAID hard disk drive before formatting and in- stalling an operating system. IDE (Integrated Drive Electr onics) IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the need for a separate adapter card (in the case for SCSI de- vices). UltraDMA/33 IDE devices can achieve up to 33MB/Sec transfer . LPT Port (Line Printer Port) Logical device name reserved by DOS for computer parallel ports. Each LPT port is configured to use a dif ferent IRQ and address assignment. PCI Bus (Peripheral Component Inter connect Local Bus) PCI bus is a specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. III. Appendix
40 AP2500 Hardwar e Refer ence Guide III. Appendix III. Appendix Peripherals Peripherals are components on the outside of the computer such as a moni- tor , printer , keyboard, or mouse. Peripherals are attached to the computer via I/O ports. Peripheral devices allow your computer to perform an almost limitless variety of specialized tasks. POST (Power On Self T est) When you turn on the computer , it will first run through the POST , a series of software-controlled diagnostic tests. The POST checks system memory , the motherboard circuitry , the display , the keyboard, the diskette drive, CPU, and other I/O devices. PS/2 Port PS/2 ports are based on IBMâ s Micro Channel Architecture. This type of architecture transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/ or keyboard may be used on A TX motherboards. RAID (Redundant Array of Inexpensive Disks) RAID can be set up to provide mirroring (for fault tolerance), parity (for data guarding), or striping (for data distribution over several drives for in- creased performance). A RAID card is required to setup a RAID system. RAM (Random Access Memory) There are several different types of RAM such as DRAM (Dynamic RAM), EDO DRAM (Extended Data Out DRAM), SDRAM (Synchronous DRAM). ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firm- ware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS). SCSI (Small Computer System Interface) High speed parallel interface defined by the X3T9.2 committee of the Ameri- can National Standards Institute (ANSI) for connecting many peripheral devices. UPS (Uninterruptible Power Supply) A battery system that can provide power to an electronic device or com- puter when power fails in the building. A passive UPS only provides power . An active UPS provides power conditioning that offers protection against transient power conditions and short-term power outages.
AP2500 Hardwar e Refer ence Guide 2 User's Notice Product Name: AP2500 Manual Revision: 1.00 E320 Release Date: December 1998 No part of this manual, including the products and software described in it, may be repro- duced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup pur - poses, without the express written permission of ASUST eK COMPUTER INC. (âÂÂASUSâÂÂ). ASUS PROVIDES THIS MANUAL âÂÂAS ISâ WITHOUT W ARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED T O THE IMPLIED W ARRANTIES OR CONDITIONS OF MERCHANT ABILITY OR FITNESS FOR A P AR- TICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECT ORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDEN- T AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DA T A, INTERRUPTION OF BUSI- NESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT . Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair , modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. Products and corporate names appearing in this manual may or may not be registered trade- marks or copyrights of their respective companies, and are used only for identification or explanation and to the ownersâ benefit, without intent to infringe. ⢠Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. ⢠Adaptec, AHA, EZ-SCSI, and AIC is a registered trademark of Adaptec, Inc. ⢠Sound Blaster , SB16, A WE32, A WE64D and SB-LINK are trademarks of Creative T echnology Ltd. ⢠Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation. ⢠IBM and OS/2 are registered trademarks of International Business Machines. ⢠W indows and MS-DOS are registered trademarks of Microsoft Corporation. ⢠T rend and ChipA wayV irus are trademarks of T rend Micro, Inc. The product name and revision number are both printed on the product itself. Manual revi- sions are released for each product design represented by the digit before and after the period of the manual revision number . Manual updates are represented by the third digit in the manual revision number . For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS at http://www .asus.com.tw or through any of the means indicated on the following page. SPECIFICA TIONS AND INFORMA TION CONT AINED IN THIS MANUAL ARE FUR- NISHED FOR INFORMA TIONAL USE ONL Y , AND ARE SUBJECT T O CHANGE A T ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COM- MITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THA T MA Y APPEAR IN THIS MANUAL, INCLUD- ING THE PRODUCTS AND SOFTW ARE DESCRIBED IN IT . Copyright é 1998 ASUST eK COMPUTER INC. All Rights Reserved.
AP2500 Hardwar e Refer ence Guide 3 ASUS Contact Information ASUST eK COMPUTER INC. Marketing Address: 150 Li-T e Road, Peitou, T aipei, T aiwan 1 12 T elephone: 886-2-2894-3447 Fax: 886-2-2894-3449 Email: info@asus.com.tw T echnical Support Fax: 886-2-2895-9254 Email: tsd@asus.com.tw WWW : www .asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS Newsroup: news2.asus.com.tw ASUS COMPUTER INTERNA TIONAL Marketing Address: 6737 Mowry A venue, Mowry Business Center , Building 2 Newark, CA 94560, USA Fax: 1-510-608-4555 Email: info-usa@asus.com.tw T echnical Support Fax: 1-510-608-4555 BBS: 1-510-739-3774 Email: tsd-usa@asus.com.tw WWW : www .asus.com FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER GmbH Marketing Address: Harkort Str . 25, 40880 Ratingen, BRD, Germany T elephone: 49-2102-44501 1 Fax: 49-2102-442066 Email: info-ger@asus.com.tw T echnical Support Hotline: 49-2102-499712 BBS: 49-2102-448690 Email: tsd-ger@asus.com.tw WWW : www .asuscom.de FTP: ftp.asuscom.de/pub/ASUSCOM
AP2500 Hardwar e Refer ence Guide 4 CONTENTS I. Introduction .............................................................................. 7 This Reference Guide ............................................................. 7 Sections .............................................................................. 7 Symbols .............................................................................. 7 This Server .............................................................................. 8 Component Checklist .............................................................. 8 Features .................................................................................. 9 Safety and W arning ............................................................... 10 Static-Sensitive Devices ................................................... 10 T ools Required ....................................................................... 1 1 Preparation ............................................................................. 1 1 II. System Components ............................................................ 12 Server Front Side .................................................................. 12 Server Back Side ................................................................... 13 Chassis Security ............................................................... 13 Chassis Panels ................................................................. 14 Chassis Circulation System .............................................. 15 Rear Cooling Fans ............................................................ 15 Rear Cooling Fan Control Board ...................................... 16 Rear Cooling Fan Control Board Layout ........................... 16 Rear Cooling Fan Control Board Settings ........................ 17 Front Cooling Fans ........................................................... 17 Message LED Description ..................................................... 18 Front Cooling Fan Control Board .......................................... 18 Fixed Storage Device T ray .................................................... 19 Fixed Device Bay Cover Clips .......................................... 19 Fixed Device Bay Cover ................................................... 19 Fixed Storage Devices .......................................................... 20 Floppy Drive and CD-ROM ............................................... 20 Floppy Drive and Storage Device Spacers ....................... 20 Hot-Swap T rays ..................................................................... 21 Hot-Swap Bay ....................................................................... 23 Hot-Swap T ray ....................................................................... 23 SCSI Backplane .................................................................... 24 SCSI Board Placement ..................................................... 24
AP2500 Hardwar e Refer ence Guide 5 Contents SCSI Board Power Installation ........................................ 24 SCSI ID Setting ................................................................. 25 SCSI ID Dip Switches ....................................................... 27 SCSI Information ................................................................... 27 SCSI Connections ............................................................ 27 SCSI T ermination .............................................................. 27 SCSI ID Jumpers .............................................................. 27 SCSI ID Priority ................................................................. 27 Motherboard Securing ...................................................... 28 Device Cables ....................................................................... 29 Cable Connections ........................................................... 29 Card-Secure Module ......................................................... 30 Floppy Disk Drive (1.44MB) .............................................. 31 IDE Cabling ....................................................................... 31 CD-ROM Disk Drive (IDE) ................................................ 31 Ultra2 SCSI Disk Drive ..................................................... 32 External Ultra2 SCSI T erminator ....................................... 32 Expansion Cards ................................................................... 32 Power Supply ........................................................................ 34 Power Supply On and Of f ................................................. 34 Power Supply Mounting .................................................... 34 Starting the Server ................................................................ 35 III. Appendix ............................................................................... 36 SCSI Cable Limits ................................................................. 36 Power Supply Information ..................................................... 37 Input V oltage ..................................................................... 37 Output Current Capacity ................................................... 37 Output V oltage Regulation, Ripple, and Noise ................. 37 Regulatory Information .......................................................... 37 Safety ................................................................................ 37 EMI ................................................................................... 37 Glossary ................................................................................ 38 Power Supply Requirement Calculation T able ...................... 39
AP2500 Hardwar e Refer ence Guide 6 FCC & DOC Compliance Federal Communications Commission Statement This device complies with FCC Rules Part 15. Operation is subject to the following two conditions: ⢠This device may not cause harmful interference, and ⢠This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa- tion. This equipment generates, uses and can radiate radio frequency ener gy and, if not installed and used in accordance with manufacturer's instructions, may cause harmful interference to radio communications. However , there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the inter - ference by one or more of the following measures: ⢠Re-orient or relocate the receiving antenna. ⢠Increase the separation between the equipment and receiver . ⢠Connect the equipment to an outlet on a circuit dif ferent from that to which the receiver is connected. ⢠Consult the dealer or an experienced radio/TV technician for help. W ARNING! The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Cana- dian Department of Communications.
AP2500 Hardwar e Refer ence Guide 7 I. Introduction This Reference Guide Y ou are reading the AP2500 Hardware Reference Guide. This hardware reference guide provides information and procedures on the various com- ponents used in this server . Some components shown in this reference guide are optional and may be individually purchased to complete the server . This guide is intended for experienced users and integrators with hardware knowl- edge of personal computers. Y ou should also read all documentation and manuals included with this server and with your separately purchased com- ponents. Sections There are only a few sections in this reference guide as follows: I. Introduction This section gives general and startup information and features for this server . II. Components This is the main section which gives descriptions of each server component. III. Appendix This section gives you additional information to help plan your server . Symbols A few symbols are used throughout this guide that you should be aware of to complete certain tasks safely and completely . These symbols indicate the degree of importance of a procedure or information. NOTE: T ips and information to aid in completing a task. IMPOR T ANT : Information that MUST be followed in order to com- plete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. W ARNING: Information to prevent injury to yourself when trying to complete a task. I. Introduction
8 AP2500 Hardwar e Refer ence Guide I. Introduction This Server AP2500 is a department server configured on the ASUS P2B-D2 smart moth- erboard which uses the 440BX chipset from Intel which supports the Pen- tium II processor and 100MHz front side bus in order to support even the most complicated server tasks. Component Checklist If assembling this server by yourself, it is important to prepare all the server components before starting. This will save a great deal of time by not hav- ing to hunt down components. The following checklist provides a guideline as to the necessary components for a server . Standard components Chassis: ASUS AS-30 T ower Power Supply: 400W A TX Motherboard: ASUS P2B-D2 CD-ROM Drive: ASUS 40X Floppy Drive: 1.44MB Cables: Power , IDE, Floppy , 50&68pin SCSI, CD audio cable SCSI T erminator: Passive terminator for 68pin SCSI cables. User â s Manuals: CD-ROM, SCSI, Motherboard, Hardware Guide Drivers/Utilities: SCSI, CD-ROM, Motherboard Required components (you may purchase from ASUS or from a third party) Processor (CPU): (optional Intel Pentium II 233MHz-450MHz) Memory Modules: (optional 16, 32, 64, 128, 256MB SDRAM) Hard drive Drives: (optional 4/9GB Ultra2 or Fast/Ultra-W ide SCSI) Optional components (you may purchase from ASUS or from a third party) Ethernet Card: (optional ASUS PCI-L101) RAID Card: (optional ASUS PCI-DA2100A) I. Introduction
AP2500 Hardwar e Refer ence Guide 9 I. Introduction Features The following are highlights to this server â s many features. For additional features and details, read the motherboard User â s Manual included with this server package. ⢠Pr ocessor: Dual Intel Pentium II processors provide up to 450MHz on each processor for extreme server processing speeds. ⢠I2O: Includes Intelâ s i960RD I/O processor with 32KB NVRAM, 4x512KB Flash EEPROM, and 2 SIMM slots for up to 256MB of memory . ⢠Memory: Four DIMM slots with up to 1GB SDRAM with ECC. ⢠Onboard IDE: Up to 33MB/sec IDE transfer with UltraDMA/33. ⢠Chipset: Intel 440BX supports up to 100MHz front side bus. ⢠Onboard LAN: Onboard Intel 10/100Base-TX Fast Ethernet. ⢠Onboard SCSI: Onboard Adaptec 7890 SCSI with three onboard con- nectors to independently connect 68-pin Ultra2 SCSI devices, 68-pin W ide-SCSI devices, and 50-pin Narrow-SCSI devices. ⢠SCSI Backplane: Ultra2 SCSI SCA backplane with remote SCSI ID dip switches and power to support up to 5 Ultra2 SCSI SCA hard drives. ⢠Device Bays: Support one floppy , one CD-ROM, two additional fixed devices, and five hot-swap SCA hard disk drives. ⢠Onboard Hardwar e Monitor: Provides information for system and processor voltages, fan status, temperature, chassis intrusion, and pro- vides automatic system restart. ⢠ASMA and Intel LDSM: Provides server monitoring, management, and control. ⢠Onboard VGA: Onboard S3 T rioV2/DX VGA with 1 MB upgradeable to 2 MB. I. Introduction
10 AP2500 Hardwar e Refer ence Guide I. Introduction Safety and W arning Observe the following safety instructions any time you are connecting or disconnecting devices to the workstation. W ARNING: An electrical outlet that is not correctly wired could place hazardous voltage on metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock. Before installing or removing signal cables, ensure that the power cables for the system unit and all attached devices are unplugged. When adding or removing any additional devices to or from the system, ensure that the power cables for those devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. Use one hand, when possible, to connect or disconnect signal cables to pre- vent a possible shock from touching two surfaces with different electrical potentials. During an electrical storm, do not connect cables for display stations, print- ers, telephones, or station protectors for communications lines. T o prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. W ARNING: This product is equipped with a three-wire power cable and plug for the user â s safety . Use the power cable in conjunction with a prop- erly grounded electrical outlet to avoid electrical shock. Static-Sensitive Devices CAUTION: Motherboards, adapters, and disk drives are sensitive to static electricity discharge. These devices are wrapped in antistatic bags to prevent this damage. T ake the following precautions: ⢠If you have an antistatic wrist strap available, use it while handling the device. ⢠Do not remove the device from the antistatic bag until you are ready to install the device in the system unit. ⢠W ith the device still in its antistatic bag, touch it to a metal frame of the system. ⢠Grasp cards and boards by the edges. Hold drives by the frame. A void touching the solder joints or pins. ⢠If you need to lay the device down while it is out of the antistatic bag, lay it on the antistatic bag. Before picking it up again, touch the anti- static bag and the metal frame of the system unit at the same time. ⢠Handle the devices carefully in order to prevent permanent damage. I. Introduction
AP2500 Hardwar e Refer ence Guide 11 I. Introduction I. Introduction T ools Required A few items are needed to install or remove the components in this server . ⢠Phillips (cross) screwdriver ⢠Standard (flat) screwdriver ⢠Antistatic wrist strap Preparation 1. Unpack your server , do not connect the power cord. IMPOR T ANT : Most servers use an A T power supply that has a fixed ON and OF F switch located on the front. This server uses an A TX power supply that is normally OF F until an electrical signal is given to the power supply through a momentary switch located on the front of the server . There is always a standby power in the power supply in order for A TX power supply features to work, and therefore removing the power cord is necessary to prevent electrical shocks when working on the server components. 2. Unlock the padlock if one is used. This server is equipped with a lock- able front door to prevent unauthorized access. Open the side panel. 3. Install final server components such as CPU, Memory , Hard Disk Drives, expansion cards. Use this hardware reference guide along with your motherboard manual in order to make these installations. 4. Connect a Keyboard and Mouse (purchased separately) 5. Connect a VGA-compatible monitor (purchased separately) 6. Connect a printer to the parallel port if desired. 7. Connect server to network (an optional network card is needed) W ARNING: T o prevent electrical shock or fire, be sure not to plug tele- communications/telephone cables into the network RJ45 connector in the server if one is installed. 8. Set the power supply input voltage to either 1 15V for 1 10V -120V areas or 130V for 120V -140V areas. CAUTION: The voltage must be set correctly or damage may occur . 9. Connect the included power cord to the server â s power supply . 10. Connect the server to a grounded (three pronged) AC power source such as a UPS or power strip (preferably with sur ge protection). W ARNING: This server is designed for connection to a grounded (earthed) outlet. T o reduce the risk of electrical shock or damage to your server , do not bypass the grounding plug.
12 AP2500 Hardwar e Refer ence Guide II. Components Server Front Side The front side of the server is provided to show the front exterior compo- nents of this server . The chassis is made of strong rust-resistant metal and covered with a protective ivory surfacing. II. System Components W ARNING: Always remove the power cord when working on the server internal components to prevent electrical shocks or damage to electrical components. A TX power supplies that are plugged into an AC outlet always have standby power even when the server is powered OFF . Server front side Power LED A TX Power Button HDD Access LED Floppy Drive CD-ROM Drive Metal Door Lock Stabilizers Metal Security Door Hot Swap T ray Metal Side Access Panel Hard Drive Fan Module Side Access Panel Screw
AP2500 Hardwar e Refer ence Guide 13 II. Components Server Back Side The back side of the server is provided to show the back exterior compo- nents of this server . II. System Components Chassis Security T o protect the server chassis from unauthorized intrusion, the chassis front panel can be locked with the built-in keylock. Chassis intrusion switches can be connected to the motherboardâ s âÂÂchassisâ connector to allow moni- toring of the chassis side panelsâ open/close status. If either one or both of the side panels are opened, the motherboardâ s onboard hardware monitor can provide alerting and logging with the provided management software. A TX Power Supply AC Power In Connector Parallel Port PS/2 Mouse Serial Port COM1 Power Supply Fan USB Ports 1 and 2 Rear Fan Module Server back side RAID Controller (Optional) T op Access Panel T op Access Panel Screw VGA Connector Rear Fan Module PS/2 Keyboard RJ45 PORT(LAN)
14 AP2500 Hardwar e Refer ence Guide II. Components Chassis Panels There are two identical side panels on the chassis, one on each side. Each panel is secured by two lar ge thumb screws on the front of the server . T o open the left side of the panel (see the left view), remove the side panel screw , then pull the handle outward while pulling the panel forward. T o open the right panel, the front door must be removed by pushing down on the hinge spring. II. System Components Server left side Rear Fan Module SCSI RAID Card (Optional) A TX Power Supply Chassis Intrusion Micro Switch Front door hinge spring Opening the side panel W ith the left panel removed, you should see the following components if you purchased a complete server .
AP2500 Hardwar e Refer ence Guide 15 II. Components Chassis Circulation System The circulation system cools the hard disk drives by bringing fresh air in from the side of the server and forcing the hot air out through the back. The server â s air circulation system is comprised of two 3 inch (8 cm) fans mounted in a removable module which brings cool air in from the outside to cool the hard disk drives. Another set of two 2 1/4 inch (6 cm) cooling fans mounted on the chassis, forces the warm air out of the chassis. The two fans in each module provides redundancy in order to increase air flow as well as insure continued circulation if one fan should fail. This circulation system should ensure that the air surrounding the hard disk drives are kept below 122ÃÂF (50ÃÂC) to prevent hard disk failures. Rear Cooling Fans The system fan modules on the rear is held by two screws and four latches on the interior of the chassis. There are four screws used to secure the fan into the individual frames. The fan moduleâ s operating status can be viewed through the ASUS ASMA software. If an individual fan fails, remove the fan and send it back to the vendor for replacement. If both fans fail, it may be that the fan control board needs replacing. If the fans do not work after replacing both of them, remove the control board and send it back to your vendor for replacement. II. System Components Individual fan with frame Screw Locations Usually , the rotation of the fan sends air toward the manufacturer â s label on the center of the fan. Four Latches T wo Screws Rear fan modules T op Fan Bottom Fan Air flows out through the back
16 AP2500 Hardwar e Refer ence Guide II. Components Rear Cooling Fan Control Board Layout The rear fan control board, although small, has many functions as shown. Fan power connector Fan control settings Power input connector Fan status signal connector Rear Cooling Fan Control Board The rear fans are controlled and monitored by a control board. The fan con- trol board requires power input from the power supply which allows the individual fans to obtain their power when connected to the control board. The control board also sends fan status information to the LEDs located on the front of the server and to the ASMA software. The fan control boardâ s cable connections are shown below . II. System Components (Reserved Connector) Fan control board with cable connections
AP2500 Hardwar e Refer ence Guide 17 II. Components Front Cooling Fans The hard disk drive fan module can be removed by using a small screw driver to push the eject lever in the fan module. The eject lever is behind a small hole as circled below . There are two individual 2 1/4 inch (6cm) fans secured by four screws on each fan. The ASMA software will report an error message when any of these two fans malfunction. II. System Components Rear Cooling Fan Control Board Settings The rear fan control board has DIP switches to allow controlling the number of fans and the control board. DIP Switch SET1 Fan contr ol setting ON (momentarily) Reset Contr ol Boar d OFF Normal (Default) SET2 SET3 SET4 Number of Fans ON ON ON 1 ON ON OFF 2 (Default) ON OFF ON 3 ON OFF OFF 4 OFF ON ON 5 OFF ON OFF 6 OFF OFF ON 7 OFF OFF OFF 8 The control boards mount with the component side face down Removing the front fan module The front fan module frame
18 AP2500 Hardwar e Refer ence Guide II. Components Front Cooling Fan Control Board The front cooling fansâ main purpose is to cool the hard disk drives. These fans also have a fan control board like the rear cooling fans. The front cool- ing fan module consists of a control board, a hard disk drive LED status board, and two cooling fans. The message LED board mounted in the front of the cooling fan module consists of five sets of LEDs to represent the status of up to five hard disk drives. Each set has three LEDs which shows the power , activity , and status of each hard disk drive. II. System Components LED Board Header (For cable to connect to fan board) Hard drive Power LED (Green) Hard drive Access LED (Y ellow) Hard drive Status LED (Red) Hard disk drive message board pin 1 3-pin Fan Header Gold Finger Connector to the SCSI Back plane Board LED Board Header (For cable to connect to LED board) Front cooling fan control board pin 1 Power LED Status LED Description of f off power subsystem OK and ready for hard drive insertion on off Hard disk drive is OK for operation on on Hard disk drive failure (*) on fast flash RAID in rebuilding (*) on slow flash Hot-spare hard disk drive (*) fast flash on Hard disk drive power failure/short circuit fast flash fast flash Fan failure Message LED Description * Must be provided by RAID controller â s SAF-TE function.
AP2500 Hardwar e Refer ence Guide 19 II. Components Fixed Storage Device T ray Internal fixed storage devices are mounted on removable trays. There are four available, one for a floppy device and another three for full-size de- vices. There are six screws provided (as circled) for mounting a 4 inch de- vice such as a floppy or hard disk drive. Four screws are provided (as boxed) for mounting a 6 inch device such as a CD-ROM or tape drive. Fixed Device Bay Cover After releasing the device bay cover clips, pry the cover away from the chassis using a screw driver from the front. Fixed Device Bay Cover Clips The device bay panel is held by two plastic clips on each side. Press these clips in with a screwdriver to release. Removing the device bay cover clips Fixed storage device tray II. System Components Removing the device bay cover clips
20 AP2500 Hardwar e Refer ence Guide II. Components Fixed Storage Devices Floppy Drive and CD-ROM The floppy drive fits in the topmost bay along with the power button. A CD- ROM can fit into either the second, third, or fourth bay from the top. A metal clip on each side of the device tray secures the tray in place. Press inward to release the clips. The tray slides in or out on the side rails. Removing a floppy or CD-ROM drive II. System Components Floppy Drive and Storage Device Spacers Spacers are required for cosmetics only . A floppy drive spacer is used to cover the floppy drive and power button. A standard storage device spacer is used to cover the CD-ROM, tape drive, or additional CD-ROMs. Y ou should purchase an extra spacer for each storage device. Floppy Drive Spacer Fixed Device Spacer Floppy and CD-ROM drive spacers Floppy drive with spacer CD-ROM with spacer Floppy and CD-ROM drives
AP2500 Hardwar e Refer ence Guide 21 II. Components Hot-Swap T rays Maximum uptime in a server requires devices that can be easily replaced or âÂÂswapped.â The main hard drives are mounted in internal hot-swap trays for easy replacement. The AP2500 hot-swap bay has two different models. The 1.6 inch SCA hot-swap bay can accommodate three 1.6 inch hard disk drives. The 1.0 inch SCA hot-swap bay can accommodate five 1.0 inch hard disk drives. II. System Components 1.6â SCA Hot-Swap Bay 1.6â tray with 1.6â SCA hard drive 1.0â SCA Hot-Swap Bay 1.0â tray with 1.0â SCA hard drive
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AP2500 Hardwar e Refer ence Guide 23 II. Components II. System Components Hot-Swap Bay There are two levers on the front of the hot swap tray to help re- lease or lock the tray . T o remove the tray , extend both levers and pull on both levers. T o install the tray , push the tray firmly into the bay with the levers extended, then close the levers. Three hard disk drive LEDs are located in- side the system fan module for each hard disk drive tray . LEDs provide information on the power and activity status of the hard disk drive. When power is received by the hot-swap trayâ s connector board, the power LED will light. When data is written or read to or from the contained hard disk drive, the activity LED will flash proportional to the amount of data transferred. Hot-Swap T ray Each hot-swap tray provides an alumi- num carrier for a single SCSI hard disk drive with a maximum height of 1 inch or 1.6 inch (depending on model), a width of 4 inches, and a length of 6 inches. The aluminum tray provides pro- tection and maximum heat dissipation for almost all types of high speed SCSI disk drives. The provided screws are needed to secure the hard disk drive into the tray .
24 AP2500 Hardwar e Refer ence Guide II. Components II. System Components SCSI Backplane The SCSI backplane of this server is comprised of one SCSI board(DA- BP5) with Ultra2 SCSI connectors, power inputs, and SCSI ID dip switches. This configuration allows Ultra2 SCSI SCA hard disk drives to be docked into the server using a SCA connector . The SCSI board(DA-BP5) dose not has a terminator build in so the included terminator block must be used on the end connector .(see picture below) SCSI Board Placement There are six screws on the SCSI board. The extended expansion card guide must be removed before the SCSI board can be removed. The SCSI board has one side with two connectors and three power connectors and another side with either three or five SCSI SCA connectors. Face the side with the power connector toward the motherboard. In order to ensure proper orienta- tion of the SCSI board, the screw holes are not placed symmetrically . SCSI Board Power Installation There are three power connectors on the front side of the SCSI board. The PWR1 and PWR2 connectors have to be connected to the power supply , the PWR3 connector is a spare power connector which will supply power if PWR1 and/or PWR2 connectors fail to supply power . The voltage distribu- tion for the three power connectors are not equal due to the enormous volt- age and current requirements by the SCSI drives. SCSI ID Select DIP Switch PWR3 Connector PWR2 Connector PWR1 Connector The provided terminator must be placed on this bottom SCSI connector .
AP2500 Hardwar e Refer ence Guide 25 II. Components II. System Components SCSI ID Setting SCSI ID settings are made through DIP switches located on the SCSI board. The SCSI board has four dip switches to set the hard driveâ s power on delay and SCSI ID. SCSI ID Setting RMT_ST ART DL Y_ST ART description of f off Motor up when power on on off Motor up after ST ART UNIT command of f on Motor up after 12xSCSI ID ms on on Reserved IDSEL1 IDSEL0 Slot1 Slot2 Slot3A/3B Slot4 Slot5A/5B off of f Reserved on on 15 12 1 1 8 3 on off 14 9 6 4 1 of f on 13 10 5 2 0 Hard Disk Drive Power On Delay 1â T ray Connector #5 1â T ray Connector #4 1â T ray Connector #3 1â T ray Connector #2 1â T ray Connector #1 1.6â T ray Connector #5B 1.6â T ray Connector #3B 1.6â T ray Connector #1
26 AP2500 Hardwar e Refer ence Guide II. Components II. System Components SCSI ID Dip Switches The following illustrates the different possibilities using the dip switches. IDSEL 1=of f IDSEL 0=of f ON IDSEL 1=on IDSEL 0=on ON IDSEL 1=on IDSEL 1=of f ON ON IDSEL 1=of f IDSEL 0=on ON IDSEL1 IDSEL0 Slot1 Slot2 Slot3A Slot4 Slot5A off off Resv . on on 15 12 1 1 8 3 on off 14 9 6 4 1 off on 13 10 5 2 0 ON DL Y_ST ART RMT_ST AR T IDSEL 1 IDSEL 0 1 2 3 4 1 2 3 4 ON Default setting IDSEL 1 off IDSEL 0 on DL Y_ST ART on RMT_ST AR T off IDSEL 1=of f IDSEL 0=of f ON IDSEL 1=on IDSEL 0=on ON IDSEL 1=on IDSEL 1=of f ON ON IDSEL 1=of f IDSEL 0=on ON IDSEL1 IDSEL0 Slot1 Slot3B Slot5B off of f Resv . on on 15 1 1 3 on of f 14 6 1 off on 13 5 0 IMPOR T ANT : If your hard disk drives have terminator jumpers, they must be removed because an external terminator is provided for the SCSI board.
AP2500 Hardwar e Refer ence Guide 27 II. Components II. System Components SCSI Information SCSI Connections Y our server can support up to 15 user installed single-ended SCSI devices. Be sure to include both internal and external SCSI devices in your device setup. Each SCSI device (both internal and external) must have a unique address (or SCSI ID). Check your SCSI device documentation for instruc- tions. Be sure to record all SCSI addresses so that you can prevent SCSI address conflicts. SCSI T ermination SCSI devices are connected together in a âÂÂchainâ by cables. Internal de- vices connect to the motherboard with a 50 pin or 68 pin flat ribbon cable. External SCSI devices may be connected using an external SCSI connector or SCSI card with an external connector . If there are more than one internal or external device, additional devices are connected with cables to form a âÂÂchain.â T erminating the SCSI Bus âÂÂchainâ is necessary for SCSI devices to work properly . SCSI devices normally come with its termination enabled by jumpers or dip switches. Y ou must disable these termination for devices in between the SCSI chain. Ultra2 devices do not have a termination jumper and must be terminated using a terminator on the SCSI cable. The termina- tor must always be on the end of the cable which means that you cannot connect a device on the last connector . SCSI ID Jumpers All SCSI devices, including this motherboard with onboard SCSI, must have a SCSI identification number that is not in use by any other SCSI device. There are sixteen possible ID numbers, 0 through 15. The SCSI ID serves two purposes: ⢠It uniquely defines each SCSI device on the bus. ⢠It determines which device controls the bus when two or more devices try to use it at the same time. SCSI IDs on one channel do not interfere with the IDs on another channel. Y ou can connect up to 15 SCSI devices to this motherboard. Y ou must set a SCSI ID number (ID 0 to ID 15) for each device. Note that the onboard SCSI chipset is also a SCSI device and will also require a SCSI ID number . SCSI devices vary in how they set the ID number . Some use jumpers, others have some kind of selector switch. Refer to the manual for any device you install for details on how to set its ID number . SCSI ID Priority The motherboard has an onboard 16bit single-channel SCSI chipset. SCSI ID 15 has the highest priority , and SCSI ID 0 has the lowest priority .
28 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Motherboard Securing Remove the extended expansion card guide before installing or removing the motherboard. All screws are necessary to provide the needed stabiliza- tion to support all the motherboard expansion cards used in a server . Place four spacers in the ar - eas circled on the chassis. Installed motherboard Place twelve screws in the areas circled on the motherboard. There is a chassis intrusion con- nector here. The chassis provides an micro toggle switch that must be connected to the motherboard for the chassis intrusion detection to work. The motherboard will signal the ASMA software when the side panel is opened. The connec- tion diagram is given here. Chassis Intrusion Switch Motherboardâ s chassis intrusion connector 5VSB Chassis Signal From chassis micro switch spacer
AP2500 Hardwar e Refer ence Guide 29 II. Components II. System Components Cable Connections The cables connect to the motherboard as shown. The motherboard includes onboard SCSI with 68-pin and 50-pin SCSI connectors. RAID connections require the ASUS PCI-DA2100A RAID card. Device Cables Several cables are used for connecting devices in the server . The following picture points out the name of each cable and its suggested location. Plastic keepers protect the cables from contact with the fans and other devices. Make sure that all cables are properly secured. Motherboard with cables connected IDE Cable Cables from devices Floppy Cable 68-pin W ide- SCSI Cables (for RAID card) Plastic Keeper IDE Cable (CD-ROM) System Fan Module Floppy Cable 68-pin W ide-SCSI for onboard SCSI ASUS RAID Card
30 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Card-Secure Module The chassis provides an adjustable expansion card securing rack to help hold expansion cards in their slots. The securing rack module is mounted by four screws on the edge of the server . There are 18 knobs on the module. T urn the knob counter clockwise to extend the metal arm under each knob. Keep turning until the arm is firmly press against the expansion card. T urn the knob clockwise to retract the metal arm. Floppy Disk Drive (1.44MB) The 1.44MB floppy disk drive requires signal and power connections. The power connection is easy since it only fits one way and a latch is available to secure it when fully inserted. The signal cable is tricky because the cable fits in both orientations as well as shifted one direction or the other . The signal cable also has no latch to determine when full insertion is made. Align the red stripes of the signal and power cables so that they face each other . Carefully insert the connector while visually watching the progress so that proper alignment and insertion is made. Red stripe of signal cable Red stripe of power cable 1.44MB floppy disk drive connections Cables connected to devices Knob Metal Arm
AP2500 Hardwar e Refer ence Guide 31 II. Components II. System Components IDE Cabling Proper IDE device operation requires that the IDE ribbon cable does not exceed 18 inches. If only one IDE device is used, connect it to the end of the cable. Remove unused cables from the motherboardâ s IDE connector to ensure proper signal strength. CD-ROM Disk Drive (IDE) The CD-ROM disk drive mounts only in one of the three fixed device bays and requires signal and power connections like that of IDE hard disk drives . The power and signal cable is straightforward with connectors designed to only fit correctly . The red stripe of the signal and power cables should face each other . NOTE: A CD-ROM audio cable is also provided in case you install an au- dio card. The only function of the audio cable is to direct music C D audio sig- nal to your audio card. Computer CD- ROMs have d ata (such as *.wav , *.mpg, *.avi) that travels through the signal cable. Red stripe of signal cable Red stripe of power cable CD-ROM drive connections CD audio output
32 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Ultra2 SCSI Disk Drive The Ultra2 SCSI disk drive has separate signal and power connections. The power connector is the same as standard hard disk drive power . The signal cable is different. For proper signal stability in Ultra2 speeds, a special twisted ribbon cable must be used. Each pair of wires are twisted for signal shield- ing like that of high speed (e.g. category 5) LAN cabling. IMPOR T ANT : Y ou must use Ultra2 SCSI ribbon cables for Ultra2 devices. Ultra2 ribbon cables (may be colored red and white) are similar to wide- SCSI ribbon cables (normally colored gray) but each pair of wire is twisted to reduce signal interference. Ultra2 SCSI hard disk drive connections Red stripe of signal cable Red stripe of power cable External Ultra2 SCSI T erminator T o prevent SCSI signal loss, the provided external SCSI terminator must be used at the end of the 68-pin SCSI cable. 50-pin SCSI cables may also use terminators but usually use termination jumpers on the device itself. Cur - rently W ide-SCSI devices have termination jumpers but Ultra2 devices do not. Some manufacturers ship SCSI devices with the terminator set, others do not. All termination jumpers must be removed along the cable where the external SCSI terminator is used.
AP2500 Hardwar e Refer ence Guide 33 II. Components II. System Components Expansion Cards Expansion cards can be easily installed just like any standard PC computer . Up to 4 PCI or 2 ISA (1 slot is shared allowing a maximum of 5 cards at one time) cards can be installed. One AGP slot is also available for a hardware 3D accelerator with an AGP connector . Expansion Card Installation Pr ocedure: 1. Follow the static precautions described in the front of this manual. 2. Switch OFF your system and all peripheral de- vices and remove the main power cord. 3. Remove the side panel to the chassis. 4. Find an unused expansion slot on the mother - board and unscrew the metal cover plate from the slot and put the screw to one side. 5. Ensure the jumpers (if any) are correctly set on your expansion card 6 . Align the cardâ s connector with the expansion slot on the motherboard and gently lower and push the card into the free slot. 7. Secure the card to the expansion slot with the screw you removed from the metal plate. 8. Attach cables or wires if necessary . 9. Reinstall the side panel if no other work is needed inside the chassis. Female T erminator for SCSI Cable Male T erminator for SCSI board
34 AP2500 Hardwar e Refer ence Guide II. Components II. System Components Power Supply This server has a standard power supply with specifications to meet this server â s motherboard requirements. A clearly marked label gives detailed specifications of the power supply . It is normal practice to remove the power cord before opening the side panel. W ith the power cord removed, you can ensure there are no voltages which can cause shorts while installing or re- moving internal components. CAUTION: Before turning on your server for the first time, set the power supplyâ s voltage. Some products may have auto voltage switching to ac- commodate 220V -240V or 1 10-120V but this power supply must be set manually . The factory default should be on 230V to accommodate the higher voltage but it is safer to visually inspect the switch yourself in case it is not. IMPOR T ANT : For countries using 1 10V -120V , you must slide the switch to 1 15V or else power up is not possible (but no damage will occur). Power Supply On and OFF Normal powering ON and powering OFF of the A TX power supply is done using the momentary A TX power switch located on the front panel which is connected to the motherboard, unlike A T power supplies which uses a per - manent switch on the power supply or chassis. The power supplyâ s main power switch must be turned on before the A TX power switch on the front panel will work. Power Supply Mounting Mounting and unmounting the power supply must be done from the inside as shown below . Four screws are used to secure the power supply to the chassis back side. Power Supply remove screws
AP2500 Hardwar e Refer ence Guide 35 II. Components II. System Components Starting the Server T urn ON the server b y pushing the power button. The power button will snap back when released because A TX power systems have an electrical ON /OF F switch unlike A T systems which require a permanent ON or OF F position. If the Power O n LE D does not light, make sure the power cord is con- nected to the system unit and to a working grounded outlet. When booting your server for the first time, hold the âÂÂDeleteâ key and enter BIOS setup in order to make settings. ISA cards requires that you set âÂÂIRQ XX Used by ISA : Y esâ in BIOS PNP AND PCI SETUP in order for that IRQ to be reserved for your ISA expansion card. Y ou need to set âÂÂBoot Sequence : A, Câ in BIOS FEA TURES SETUP in order to boot from a floppy diskette to setup your hard disk. Insert a bootable floppy diskette and select âÂÂSave & Exit Setupâ from the BIOS main menu. Once your server has properly booted, an âÂÂA:\>â prompt will appear . Use the boot diskettes provided with the server operating system or create your own. If you are planning to use RAID on your server , you need to install a RAID card, such as the ASUS PCI-DA2100A and then run the RAID setup program from a floppy diskette. Reboot your server with the operating system boot disk in order to install drivers for your devices (such as CD-ROM and SCSI de- vices) and install your server operating system. Y ou may be prompted for manufacturer supplied driver diskettes for each device on your server if they are not included in the operating system setup drivers.
III. Appendix SCSI Cable Limits SCSI cables have a limit to the length that it may have. Exceeding the length may cause problems mounting or using any one of the SCSI devices. CAUTION: Exceeding the SCSI cable limits may cause unreliable data transfers even if all the devices are mounted properly . NOTES: ⢠Narrow refers to 50 pin and W ide refers to 68 pin. DonâÂÂt get confused by the width of the connector or cable. ⢠The SCSI ID for devices on one connector cannot be the same as the SCSI ID for devices on the other connectors. None of the devices on any connector can use ID7, which is reserved for the SCSI controller . ⢠A maximum of 15 devices may be connected to the motherboard (three connectors) at one time. The following âÂÂMax Devicesâ are for individual connectors and do not take into account other SCSI devices. Cable Limits Max Data T ransfer Rates Max Devices 1) 12m (29.4ft) Ultra2-SCSI (68 pin 80MB/Sec) 15 2) 3m - 1.5m W ide Ultra-SCSI (68 pin 40MB/Sec) 4 - 8 3) 3m (9.8ft) W ide-SCSI (68 pin 20MB/Sec) 15 4) 3m - 1.5m Narrow Ultra-SCSI (50 pin 20MB/Sec) 4 - 7 5) 3m (9.8ft) Narrow Fast-SCSI (50 pin 10MB/Sec) 7 Notes for the above chart: 1 ) A total of 15 âÂÂUltra2-SCSIâ devices (ID0-ID15) may be connected to the 68- pin Ultra2 connector on the motherboard. NOTE: If connecting Fast/Ultra devices with Ultra2 devices on the Ul- tra2 connector , the entire SCSI bus will be limited to the Ultra SCSI conditions listed above. Mixing SCSI devices is highly not recommended. 2) A total of 8 âÂÂW ide Ultra-SCSIâ devices (ID0-ID15) may be connected to the 68-pin W ide connector if using a 1.5m (4.9ft) cable, but only 4 âÂÂW ide Ultra-SCSIâ devices if using a 3m (9.89ft) cable. Ultra-SCSI technology is unstable over long lenghts, therefore stability will depend on they qual- ity of your cable and devices. 3) A total of 15 âÂÂW ide-SCSIâ devices (ID0-ID15) may be connected to the 68-pin W ide connector . 4) A total of 7 âÂÂNarrow Ultra-SCSIâ devices (ID0-ID6) may be connected to the 50-pin Narrow connector when using 1.5m (4.9ft) cable but only 4 devices when using 3m (9.8ft) cable. Ultra-SCSI technology is un- stable over long lengths, therefore stability will depend on the quality of your cable and devices. 5) A total of 7 âÂÂNarrow Fast SCSIâ devices (ID0-ID7) may be connected to the 50-pin Narrow connector . III. Appendix 36 AP2500 Hardwar e Refer ence Guide
AP2500 Hardwar e Refer ence Guide 37 III. Appendix III. Appendix Power Supply Information Input V oltage Range Min (V) Nom (V) Max (V) Range 1 90 120 132 Range 2 180 230 265 Output Current Capacity Output Nom Out (Vdc) Min (A) Max (A) 1 3.3V 1.4 30* 2 5.0V 2.4 43* 3 12.0V 0.5 12 4 -5.0V 0 0.5 5 -12.0V 0 0.5 * T otal output power for 3.3V and 5V combined shall be 210W Output V oltage Regulation, Ripple, and Noise Output V oltage Limits (Vdc) Ripple/Noise Output Min Nom Max Maximum 1 3.17V 3.30V 3.46V 50mVp-p 2 4.80V 5.00V 5.25V 50mVp-p 3 1 1.40V 12.00V 12.60V 120mVp-p 4 -4.50V -5.00V -5.50V 120mVp-p 5 -10.92V -12.00V -13.20V 120mVp-p 6 4.75V 5.00Vsb 5.25V 120mVp-p Regulatory Information Safety The power system meets all applicable clauses for UL 1950 2nd edition without D3 deviations. The power system passes all tests for CUL and TUV safety . EMI The power system, operating with resistive load, meets FCC class B and CISPR 22 class B conducted limits.
38 AP2500 Hardwar e Refer ence Guide III. Appendix III. Appendix Power Supply Requirement Calculation T able Item V olts Amp x Qty . = T otal Amp W atts (5V) W atts (12V) 209.55 3.6 Hard Drive 5.0V 1.3 x = 12V 1.5 x = CD-ROM 5.0V x = 12V x = T ape Drive 5.0V x = 12V x = Floppy Drive 5.0V x = 12V x = System Fans 5.0V x = 12V 0.3 x = 0.6 7.2 Other 3.3V x = 5.0V x = 12V x = T otal Power T otal Motherboard Power
AP2500 Hardwar e Refer ence Guide 39 III. Appendix Glossary Byte (Binary T erm) One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric character , punctuation mark, or other symbol. CHKDSK (Check Disk) An MS-DOS command that gives you information such as disk space, files, and directories on your hard disk drive. COM Port COM is a logical device name used to designate the computer serial ports. Pointing devices, modems, and infrared modules can be connected to COM ports. Each COM port is configured to use a dif ferent IRQ and address assignment. CPU (Central Pr ocessing Unit) The CPU, sometimes called âÂÂProcessor ,â actually functions as the âÂÂbrainâ of the computer . It interprets and executes program commands and pro- cesses all the data stored in memory . Currently , there are socket 7, slot 1, and slot 2 CPUs. Intel Pentium Processors fit on socket 7, Intel Pentium II fit on slot 1, and Intel Xeon fit on slot 2. FDISK (Fixed Disk Setup Pr ogram) An MS-DOS program used to partition the hard disk drive. FDISK is re- quired to setup a new non-RAID hard disk drive before formatting and in- stalling an operating system. IDE (Integrated Drive Electr onics) IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the need for a separate adapter card (in the case for SCSI de- vices). UltraDMA/33 IDE devices can achieve up to 33MB/Sec transfer . LPT Port (Line Printer Port) Logical device name reserved by DOS for computer parallel ports. Each LPT port is configured to use a dif ferent IRQ and address assignment. PCI Bus (Peripheral Component Inter connect Local Bus) PCI bus is a specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. III. Appendix
40 AP2500 Hardwar e Refer ence Guide III. Appendix III. Appendix Peripherals Peripherals are components on the outside of the computer such as a moni- tor , printer , keyboard, or mouse. Peripherals are attached to the computer via I/O ports. Peripheral devices allow your computer to perform an almost limitless variety of specialized tasks. POST (Power On Self T est) When you turn on the computer , it will first run through the POST , a series of software-controlled diagnostic tests. The POST checks system memory , the motherboard circuitry , the display , the keyboard, the diskette drive, CPU, and other I/O devices. PS/2 Port PS/2 ports are based on IBMâ s Micro Channel Architecture. This type of architecture transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/ or keyboard may be used on A TX motherboards. RAID (Redundant Array of Inexpensive Disks) RAID can be set up to provide mirroring (for fault tolerance), parity (for data guarding), or striping (for data distribution over several drives for in- creased performance). A RAID card is required to setup a RAID system. RAM (Random Access Memory) There are several different types of RAM such as DRAM (Dynamic RAM), EDO DRAM (Extended Data Out DRAM), SDRAM (Synchronous DRAM). ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firm- ware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS). SCSI (Small Computer System Interface) High speed parallel interface defined by the X3T9.2 committee of the Ameri- can National Standards Institute (ANSI) for connecting many peripheral devices. UPS (Uninterruptible Power Supply) A battery system that can provide power to an electronic device or com- puter when power fails in the building. A passive UPS only provides power . An active UPS provides power conditioning that offers protection against transient power conditions and short-term power outages.