R AP7500 Pentium® II Corporate Server Hardware Reference Guide
User’s Notice No part of this manual, including the products and software described in it, may be reproduced, 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 purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
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Contents I. Introduction ............................................................. 7 This Reference Guide ............................................................. 7 Sections .............................................................................. 7 Symbols .............................................................................. 7 This Server .............................................................................. 8 Component Checklist ..............................................
Contents SCSI Information ................................................................... 24 SCSI Connections ............................................................ 24 SCSI Termination .............................................................. 24 SCSI ID Jumpers .............................................................. 24 SCSI ID Priority ................................................................. 24 Device Cables .....................................................................
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.
I. Introduction I. Introduction Sections / Symbols This Reference Guide You are reading the AP7500 Hardware Reference Guide. This hardware reference guide provides information and procedures on the various components used in this server. Some components shown in this reference guide are optional and may be individually purchased to complete this server. This guide is intended for experienced users and integrators with hardware knowledge of personal computers.
I. Introduction I. Introduction Checklist This Server The AP7500 is a corporate server configured on the ASUS P2B-D2 smart motherboard which uses the 440BX chipset from Intel which supports the Pentium 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 having to hunt down components.
I. Introduction I. Introduction Features Features The following are highlights to this server’s many features. For additional features and details, read the motherboard User’s Manual included with this server package. • • • • • • • • • • • • Processor: Dual Intel Pentium II processors provide up to 450MHz on each processor for extreme server processing speeds. Memory: Four DIMM slots with up to 1GB EDO or SDRAM with ECC. Onboard IDE: Up to 33MB/sec IDE transfer with UltraDMA/33.
I. Introduction I. Introduction Safety and Warning Safety and Warning Observe the following safety instructions any time you are connecting or disconnecting devices to the workstation. WARNING: 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.
I. Introduction I. Introduction Tools / Preparation Tools 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. IMPORTANT: Most servers use an AT power supply that has a fixed ON and OFF switch located on the front.
II. System Components Server Front Side The front side of the server is provided to show the front exterior components of this server. The chassis is made of strong rust-resistant metal and covered with a protective ivory surfacing. Floppy Drive II.
II. System Components Server Back Side II. Components Server Back Side The back side of the server is provided to show the back exterior components of this server.
II. System Components Chassis Panels There are two identical side panels on the chassis, one on each side. Each panel is secured by two screws on the back of the server (circled below) and also by a CAM. The CAM has a rotating knob with its own keylock. Turn the knob counterclockwise to release and clockwise to secure. The keylock can be used to keep the knob from being turned by unauthorized people. II.
II. System Components Circulation System The server’s air circulation system is comprised of five 3 inch (8 cm) fans mounted on a metal fan module. The circulation system cools the hard disk drives by bringing fresh air in from the front and forcing the hot air out through the back. It is important to keep the air surrounding the hard disk drives below 122˚F (50˚C) to prevent hard disk failures. Fan Replacement II.
II. System Components Fixed Storage Device Tray Internal fixed storage devices are mounted on removable trays. There are four available, one for a floppy device and another three for full-size devices. There are six screws provided (as circled) for mounting a 4 inch device 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. II.
II. System Components Fixed Storage Devices Floppy Drive and CD-ROM The floppy drive fits in the topmost bay along with the power button. A CDROM 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. II.
II. System Components Hot-Swap Trays Maximum uptime in a server requires devices that can be easily replaced or “swapped.” The main hard disks are mounted in internal hot-swap trays for easy replacement. To remove the tray, unlock the tray and pull on the handle. A lock secures the handle and switches on or off the power to the hard drive. II.
II. System Components Hot-Swap Tray Usage II. Components Hot-Swap Tray Each hot-swap tray provides an aluminum carrier for a single SCSI hard disk drive with a maximum height of 1 5/8 inch, width of 4 inches, and length of 6 inches. The aluminum tray provides protection and maximum heat dissipation for almost all types of high speed SCSI disk drives. The provided cables and wires connect to the SCSI hard disk drive and screws are needed to secure the tray to the bottom of the SCSI hard disk drive.
II. System Components Hot-Swap Tray Connector Board The connector board is mounted on the hot-swap tray to interface with the SCSI backplane in the chassis. The connector board combines all the signal and power into one docking connector for a simple hot-swap unit. KEY SLED (not used) II.
II. System Components Motherboard Securing Remove the fan module before installing or removing the motherboard. All screws are necessary to provide the needed stabilization to support all the motherboard expansion cards used in a server. Spacer Mounts II. Components Motherboard Secure These spacers are used to give added support to the motherboard.
II. System Components SCSI Backplane The SCSI backplane of this server is comprised of two SCSI boards with a Wide-SCSI connector, power input, and SCSI ID dip switches on each SCSI board. This configuration allows Wide-SCSI hard disk drives to be docked into the server using a common connector. The female end is located on the SCSI board, while the male end is located on the hot-swap tray. SCSI Board Placement II. Components SCSI Backplane There are three screws on each side of the SCSI board.
II. System Components SCSI ID Setting SCSI ID settings are made through DIP switches located on the SCSI board. Each SCSI board IDSEL switch has default settings as labeled below. The default settings were set for use with a 2-channel SCSI card. Each channel may repeat the SCSI ID numbers of another channel. Make sure that each IDSEL switch (on each channel) has its own unique setting if making changes to these switches. See next page for more information on SCSI ID settings. 68pin Wide SCSI Connector II.
II. System Components SCSI Information SCSI Connections II. Components SCSI Information Your 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 instructions. Be sure to record all SCSI addresses so that you can prevent SCSI address conflicts.
II. System Components Device Cables ATX Power Connector II. Components 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.
II. System Components Device Connections The following picture gives an example of how the server looks with all its cables connected to both standard and optional components. II. Components Connections / Floppy Plastic Keeper SCSI Cables Cables connected to devices 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.
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 motherboard’s IDE connector to ensure proper signal strength. II. Components IDE Cable / CD-ROM 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.
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 shielding like that of high speed (e.g. category 5) LAN cabling. II.
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. AP7500 Hardware Reference Guide II. Components Expansion Cards Expansion Card Installation Procedure: 1. Follow the static precautions described in the front of this manual. 2.
II. System Components Power Supply II. Components Power Supply This server has a special redundant power supply with specifications to surpass this server’s requirements. A clearly marked label gives detailed specifications of the power supply. A power switch is not provided therefore it is necessary to remove the power cord before opening the side panel in order to shut off the standby power.
II. System Components Power Module Rating II. Components Power Modules The redundant power supply consist of one frame and two identical ATX power modules. The power supply must be turned on or off through an ATX power switch connected to the motherboard’s panel connector. The power modules are rated at 400W each and have passive current sharing on all outputs. Each power module supplies up to 400W to share the load but do not provide 800W combined.
III. Power Information Starting the Server Turn ON the server by turning the power knob clockwise and pushing inwards momentarily. The power button will snap back when released because ATX power systems have an electrical ON/OFF switch unlike AT systems which require a permanent ON or OFF position. If the Power On LED does not light, make sure the power cord is connected to the system unit and to a working grounded outlet. III. Power Info.
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. Cable Limits 1) 12m (29.4ft) 2) 3m - 1.5m 3) 3m (9.8ft) 4) 3m - 1.5m 5) 3m (9.8ft) III. Appendix SCSI Cable Limits NOTES: • Narrow refers to 50 pin and Wide refers to 68 pin.
III. Appendix Power Supply Information Input Voltage Range Range 1 Range 2 Min (V) 90 180 Nom (V) Max (V) 120 132 230 264 Input Current Input Voltage Range 1 Range 2 Max In Cur. 10A 5A Max Inrush Cur. 100Ap-p 200Ap-p Output Current Capacity III. Appendix Power Information Output Nom Out (Vdc) Min (A) Max (A) 1 3.3V 0 30* 2 5.0V 3.0 40* 3 12.0V 0.5 15 4 -5.0V 0 0.5 5 -12.0V 0 0.5 * Total output power for 3.
III. Appendix Power Supply Requirement Calculation Table Volts Amp x Qty. = Total Amp Watts (5V) Watts (12V) Total Motherboard Power Hard Drive 209.55 5.0V 1.3 x = 12V 1.5 x = 5.0V x = 12V x = 5.0V x = 12V x = Floppy Drive 5.0V x = 12V x = System Fans 5.0V x = x = 3.3V x = 5.0V x = 12V x = CD-ROM Tape Drive 12V Other 0.3 0.6 3.6 III. Appendix Power Requirement Item 7.
III. Appendix Glossary Byte (Binary Term) 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.
III. Appendix Peripherals Peripherals are components on the outside of the computer such as a monitor, 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 Test) When you turn on the computer, it will first run through the POST, a series of software-controlled diagnostic tests.
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