Information contained in this document is subject to change without notice and does not represent a commitment on the part of Apricot Computers Limited. Any software described in this manual is furnished under a license agreement. The software may be used or copied only in accordance with the terms of this agreement.
S a f e t y a n d R e g u l a t o r y N o t i c e s Safety and Regulatory Notices Read the separate Power Connection Guide before using the computer for the first time.
S a f e t y a n d R e g u l a t o r y N o t i c e s Power cord requirements The power cord packed with the computer complies with the safety standards applicable in the country in which it is first sold.
S a f e t y a n d R e g u l a t o r y N o t i c e s UK plug wiring instructions The wire which is coloured green-and- IMPORTANT: yellow must be connected to the terminal in the plug which is marked with Power Cable the letter E, or by the earth symbol...
CONTENTS Introduction System Overview and Features Structure of the Owner’s Handbook Operating Your System Front View Rear Panel Machine Interior Setting Up Your System for the First Time Using the Front Panel Security 2/11 Automatic Failure Recovery 2/12 Using the System Configuration Utility 2/12 The Flash Memory 2/17...
C o n t e n t s System Management Controller Board 4/25 Cooling Fan and Handguard 4/30 Hard Disk Drive Cooling Fan Assembly 4/32 Hard Disk Drive Module Backplane 4/36 Motherboard Power Distribution Panel 4/39 Motherboard 4/41 Motherboard Cooling Fan Assembly 4/47 Hard Disk Drive Power Distribution Panel 4/49...
Owner’s Handbook is organized. System Overview and Features Your Apricot is a fully symmetrical multiprocessor system that can be expanded and adapted according to your needs. The system will support: ♦ One to four 100-MHz Pentium processors, via single or dual processor cards.
I n t r o d u c t i o n Other features include: ♦ Multi-processor Bus. The system is equipped with a chipset that controls a multiplexed 64-bit bus and achieves a peak transfer rate of 267 Mbytes per second at 33 MHz. It also provides an integrated 1.2 Mbyte cache and an intelligent PCI bridge.
I n t r o d u c t i o n Structure of the Owner’s Handbook The information in the Owner’s Handbook is divided into the following parts: Operating Your System - This section explains the use of the Front Panel Controls.
OPERATING YOUR SYSTEM This section identifies the different parts of your system, explains what you should do when using the system for the first time and shows you how to carry out tasks which are part of normal operation. Front View The following illustration shows a front view of the server with the drive bay door open: COMPA...
O p e r a t i n g Y o u r S y s t e m The following paragraphs explain each item on the front of the machine: ♦ Diagnostic Codes LCD - Displays diagnostic codes that indicate errors or normal stages in the boot process (see the separate document Diagnostic Codes Reference Guide).
O p e r a t i n g Y o u r S y s t e m Rear Panel The rear panel contains the various ports and connectors as shown in the following illustration: Figure 2-2 Rear Panel Keyboard Connector (PS/2) Expansion Slot Openings Mouse Connector (PS/2)
O p e r a t i n g Y o u r S y s t e m Machine Interior The interior of the server consists of the following main areas: ♦ Hard Disk Subsystem ♦ Removable Media Drive Bay ♦...
O p e r a t i n g Y o u r S y s t e m Removable Media Drive Bay The removable media drive bay is the area which contains drives such as floppy, CD ROM and tape backup. The bay will accommodate up to four half-height 5.25-inch drives.
The Event Manager User’s Guide contains more details about this feature. Cooling Fans Your Apricot is equipped with six large cooling fans, three on each side of the machine. These will prevent overheating by maintaining an appropriate temperature inside the system.
O p e r a t i n g Y o u r S y s t e m Setting Up Your System for the First Time After you have unpacked the server, rolled it into position and used the jacking mechanism on the front castors to immobilize it (see the separate document Getting Started), use the following steps to set up the system: Connect the monitor, keyboard, mouse and mains power cables to...
O p e r a t i n g Y o u r S y s t e m Using the Front Panel This section describes the functions of the front panel during normal operation. Note Do not place any weight, either by leaning or by placing objects, on the fascia surrounding the front panel.
O p e r a t i n g Y o u r S y s t e m number for each of the SCSI devices installed in your system. What happens after this depends on how your Apricot has been configured, i.e. which operating system or other software may be installed.
O p e r a t i n g Y o u r S y s t e m Special Button Functions Caution Do not use these functions unless there is serious problem with the system and it is absolutely necessary. Pressing S and R simultaneously while the front...
♦ Steady green means that the system is on. Security Your Apricot is equipped with a security system to help prevent unauthorized persons tampering with the front panel buttons and gaining access to the interior of the system. Security is enabled within the System Management Application (see the SMA User’s Guide, the Event Manager User’s Guide or the on-line help within...
O p e r a t i n g Y o u r S y s t e m Automatic Failure Recovery As with any computer system, your server may develop a hardware or software fault, which, for example, may only manifest itself intermittently, that causes the system to hang.
O p e r a t i n g Y o u r S y s t e m To run the SCU: Locally, press F2 to run the Flash Disk Utility during the hardware boot sequence but before the operating system loads; remotely, run the Flash Disk Utility via the SMA.
O p e r a t i n g Y o u r S y s t e m How to use the SCU The Help text will provide most of the instructions you will need to use the SCU. The following paragraphs briefly explain the general techniques for navigating your way through the utility.
O p e r a t i n g Y o u r S y s t e m How to use SCU Help There are two ways to access SCU Help: ♦ Select Step 1: About System Configuration, from the Main Menu.
You will not be able to boot the system from a remote workstation. Password Clear Switch There is a Password Clear Switch on the motherboard of your Apricot. If you set this switch to On, the passwords will be cleared (i.e. removed) every time you boot or reset the system.
O p e r a t i n g Y o u r S y s t e m The Flash Memory The Flash is a special portion of read-only memory (ROM). It differs from conventional ROM in that its contents can be updated, but it still preserves its information when system power is off.
O p e r a t i n g Y o u r S y s t e m ♦ Option 4, Upgrade Motherboard BIOS - This option enables you to upgrade the motherboard’s BIOS with a new version of BIOS information.
UPGRADING YOUR SYSTEM This chapter explains how to add the following items to your system: ♦ Processor, memory or expansion cards. ♦ Memory modules to an existing memory card. ♦ Additional hard disks. Important Note Only authorized engineers may have access to the electronics chamber of the server, on the opposite side from the hard disk chamber.
U p g r a d i n g Y o u r S y s t e m To remove the side panel: Switch the machine to Standby mode. Note If you are just going to add or hot-swap a hard disk drive, you can do it while the machine is still switched on.
U p g r a d i n g Y o u r S y s t e m Refitting the Side Panel Use the following steps to refit the side panel: Ensure that the lip on the inner surface of the side panel fits over the chassis ridge.
U p g r a d i n g Y o u r S y s t e m Installing CPU and Memory Cards Important Note The procedures explained in this section are for authorized engineers only. There are four slots reserved for memory and CPU cards. They are located on the motherboard towards the top of the electronics chamber.
U p g r a d i n g Y o u r S y s t e m The following diagram shows the positions of the slots: Figure 3-4 Memory and CPU slots Memory Slot 1 CPU Slot 1 Memory Slot 2 CPU Slot 2 Note...
U p g r a d i n g Y o u r S y s t e m You can fit either one or two of both kinds of cards. The CPU card can contain either single or dual processors and can be fitted in the following configurations: ♦...
Important Note The procedure explained in this section is for authorized engineers only. The maximum memory capacity of your Apricot is 768 Mbytes, provided by up to two ECC memory cards. Each memory card contains twelve 36-bit SIMM (Single Inline Memory Module) slots.
Inserting SIMMs Important Fit only correct Apricot-approved SIMMS into your server. For each socket in the bank: The SIMM will only install in one orientation. There is a cutout at one end of the SIMM next to the connector strip.
U p g r a d i n g Y o u r S y s t e m Figure 3-6 Positioning the SIMM Lower the SIMM into the socket and ensure that it is properly seated. Pushing gently on the top corners, rotate the SIMM towards the vertical.
U p g r a d i n g Y o u r S y s t e m Installing and Removing Expansion Cards Important Note The procedures explained in this section are for authorized engineers only. The following illustration shows the positions of the expansion card slots in the electronics chamber: Figure 3-8 PCI and EISA/ISA Expansion Card Slots PCI Slots...
U p g r a d i n g Y o u r S y s t e m Installing Study the expansion board’s installation guide and follow its directions. The guide should tell you what kind of slot (i.e. PCI or EISA/ISA) you will use and whether there are any jumpers or switches on the card that you need to configure.
U p g r a d i n g Y o u r S y s t e m Removing Unplug all cables connected to the board. Remove the securing screw and pull the board out of the slot, leaving an empty space on the rear panel for the blanking plate again.
U p g r a d i n g Y o u r S y s t e m Fitting a Hard Disk Drive There can be up to five drive modules in the subsystem, each containing up to four drives. Each drive is fastened onto a removable drive tray. To fit a drive: Locate an empty drive tray.
U p g r a d i n g Y o u r S y s t e m Turn the hard disk tray release handle anti-clockwise until it stops, which is almost one complete turn. As you turn the handle, the drive tray ejects slightly.
Note Since the hard disk drives for your Apricot are exclusively SCSI drives, it is important to note that the SCSI connector on the inside of the drive module backplane contains the device address. This means that, for a given connector, any disk drive that is fitted to that connector will have the same SCSI address.
Uninterruptible Power Supply Unit ♦ UPS Battery Pack Your Apricot has been designed so that in most cases you can remove a component without disturbing adjacent items. The procedures for removing or fitting CPU cards, memory cards and other expansion cards are not presented in this chapter. For these, refer to Chapter 3, Upgrading Your System.
S e r v i c e I n f o r m a t i o n Preliminary Service Tasks Before you can perform a service procedure, you must do the following: Refer to the SMA and note down the value of the TimeOnCharge variable.
S e r v i c e I n f o r m a t i o n Hard Disk Drive Your Apricot is equipped with SCSI hard disk drives which are hot pluggable, i.e. you can remove or fit them while the system is powered up.
S e r v i c e I n f o r m a t i o n Figure 4-2 Hard Disk Tray Removal Slide the tray out carefully until it is free of the chassis. Turn the tray over and remove the four securing screws on the underside.
S e r v i c e I n f o r m a t i o n Fitting Locate an empty drive tray. It may be wise to keep a written record of which trays are fitted with drives. You can identify a specific drive by observing the labelling scheme as shown in the following illustration: Figure 4-4 Disk Subsystem Labelling Scheme...
Note Since the hard disk drives for your Apricot are exclusively SCSI drives, it is important to note that the SCSI connector on the backplane of the drive module contains the device address. This means that, for a given connector, any disk drive that is fitted to that connector will have the same SCSI address.
S e r v i c e I n f o r m a t i o n Hard Disk Drive Module The hard disk drive module is the removable metal framework which holds up to four hard disk drives. The server’s disk subsystem can accommodate up to five of these modules.
S e r v i c e I n f o r m a t i o n Note One of the connectors, located underneath the cooling fan assembly, is considerably less accessible than the others. If it is too difficult to unplug this connector in the electronics chamber, carry out steps 3 and 4, remembering to feed the ribbon cable carefully through the centre spine opening.
S e r v i c e I n f o r m a t i o n Fitting If necessary, remove the knockout panel which covers the drive module data connector opening in the centre spine of the server. You will only need to do this the first time you fit a module in this position.
S e r v i c e I n f o r m a t i o n Now reach inside the module and push on the power circuit board on the backplane to ensure that its connector is seated properly into the power socket on the centre spine.
S e r v i c e I n f o r m a t i o n Now use the four screws to fasten the module to the subsystem metalwork. Figure 4-10 Fitting Drive Module Empty Disk Drive Module Securing Screws OWNER’S HANDBOOK 4-11...
S e r v i c e I n f o r m a t i o n In the electronics chamber, plug the appropriate ribbon cable onto the data connector on the backplane of the drive module: Figure 4-11 Plugging Ribbon Cable to Module Data Connector Hard Disk Module Data Ribbon Cable Connector...
S e r v i c e I n f o r m a t i o n Front Bezel Removing Ensure that the removable media drive bay door is close and locked. SH-18 On each side of the server, remove the protective metal plates which cover the removable media drives and the electronics chamber.
S e r v i c e I n f o r m a t i o n Reach behind the bezel and disconnect the ribbon cable from the front panel. Fitting Ensure that the hard disk drive module closest to the front of the machine (module 1) is removed.
S e r v i c e I n f o r m a t i o n Front Panel Removing With the front bezel removed and the ribbon cable disconnected from the front panel, remove the circlip from the top hinge of the removable media drive bay door (which should be closed and locked).
S e r v i c e I n f o r m a t i o n Gently press down on the metal plate to detach it from the hinge as shown: Figure 4-15 Detaching the Hinge Metal Plate Hinge Now remove the two screws as shown: Figure 4-16 Removing Front Panel Supporting Metalwork...
S e r v i c e I n f o r m a t i o n Remove the eight screws which fasten the front panel onto the metalwork: Figure 4-17 Front Panel Securing Screws Front Panel Metal Protrusion Holes Securing Screws Remove the front panel.
S e r v i c e I n f o r m a t i o n Fitting Attach the front panel to the supporting metalwork by means of the eight screws as shown: Figure 4-18 Front Panel Securing Screws Front Panel Metal Protrusion Holes Securing Screws...
S e r v i c e I n f o r m a t i o n Insert the front panel framework into the bezel as shown: Figure 4-19 Fitting Front Panel Supporting Metalwork Front Panel Supporting Securing Screws Metalwork Fasten the framework onto the bezel using the two screws.
S e r v i c e I n f o r m a t i o n Removable Media Drives To gain access to the removable media drives and the System Management Controller (SMC) you must first remove the protective metal plate which covers this area.
S e r v i c e I n f o r m a t i o n Removing Each drive is attached to a drive tray, which is in turn secured to a drive cage. To remove a tray from the cage: Unplug the data and power cables from the rear of the drive.
S e r v i c e I n f o r m a t i o n Turn the tray over and remove four screws from the underside of the tray as shown: A C T C O M P Figure 4-23 Drive Tray Removal Drive Tray Securing Screws...
S e r v i c e I n f o r m a t i o n Fitting Your server is equipped with a tray and a blanking plate for each empty drive bay. Remove the blanking plate, if necessary, from the drive tray. The plate is attached via two screws on the underside of the tray.
S e r v i c e I n f o r m a t i o n Turn the drive upright, slide it into the drive cage and secure it to the cage using the two screws. The following illustration shows the securing screws for three of the drive trays: Figure 4-25 Removable Media Drive Bay (Internal) Securing Screws...
S e r v i c e I n f o r m a t i o n System Management Controller Board Although some of the board is hidden behind the cooling fan assembly, all of the fixing screws and cable connections are easily accessible. Removing Unplug three ribbon cable connectors, the power connector, three fan connectors, two thermistor connectors and one keylock sensor...
S e r v i c e I n f o r m a t i o n Remove the two screw lock posts on the 25-way SMC serial port connector which is visible on the server’s back panel: Figure 4-27 SMC Serial Port Screw Lock Posts Screw Lock Posts Back panel Remove the seven fastening screws and lift the board out of the...
S e r v i c e I n f o r m a t i o n Fitting Feed the 25-way serial port connector through the opening in the back panel. Fasten the board to the centre spine using the seven screws as shown in the following illustration: Figure 4-28 System Management Controller Board Power Connector...
S e r v i c e I n f o r m a t i o n Against each fan connector on the board there is a graphic which indicates which fan cable should be plugged in: Middle Bottom The middle and bottom fans in this series are located below the SMC board in the disk subsystem area.
S e r v i c e I n f o r m a t i o n Tilt the top of the assembly slightly towards the interior of the server (if it hasn’t already) and lift it upwards to free it from the chassis.
S e r v i c e I n f o r m a t i o n Cooling Fan and Handguard These instructions apply to all the fans in the server. Removing Remove the four screws which hold the handguard onto the fan assembly housing.
S e r v i c e I n f o r m a t i o n Fitting Caution Before attempting to fit the fan onto the fan assembly housing, be sure to place the fan into the assembly so that the air flow through it is from the front of the server to the rear (see the arrow next to the electrical polarity marking on one corner of the fan).
S e r v i c e I n f o r m a t i o n Hard Disk Drive Cooling Fan Assembly You can remove and fit the hard disk drive cooling fan assembly without disturbing the adjacent disk drive module. Removing Unplug the middle and bottom fan connectors and their associated thermistor connectors from the SMC board as shown:...
S e r v i c e I n f o r m a t i o n Remove two screws which fasten the fan assembly to the chassis: Figure 4-33 Removing the Hard Disk Cooling Fan Assembly Securing Screws Finger Grip Use the finger grip to slide the assembly towards you.
S e r v i c e I n f o r m a t i o n Fitting Slide the assembly into position, remembering to feed the guide tabs into the positioning slots as shown in the following illustration: Figure 4-34 Refitting Hard Disk Cooling Fan Assembly Positioning Slots Securing Screws...
S e r v i c e I n f o r m a t i o n Plug the bottom and middle fan connectors, together with their associated thermistor connectors, in to the SMC board as indicated in the following diagram: Figure 4-35 SMC Fan and Thermistor Connectors for Middle and Bottom Fans Fan Connectors Thermistor Connectors...
S e r v i c e I n f o r m a t i o n Hard Disk Drive Module Backplane The backplane on a hard disk drive module consists of seven small circuit boards which are fastened with screws to the metal framework and connected to each other by a flexible ribbon cable.
S e r v i c e I n f o r m a t i o n Removing There are two fastening screws for each board except the removable media drive SCSI interface board, which has four. To remove the backplane: Remove all disk drives from the module.
S e r v i c e I n f o r m a t i o n Jumper Settings for the Removable Media SCSI Interface Board Each module backplane contains a removable media SCSI interface board, positioned at the top of the module. However, only one of the boards, the one in module B, is ever attached to the removable media SCSI cable.
S e r v i c e I n f o r m a t i o n Motherboard Power Distribution Panel The motherboard power distribution panelis fixed to the inner roof of the electronics chamber and is positioned at right angles to the motherboard. The following illustration shows the connectors and the eight securing screws on the board: Figure 4-38 Motherboard Power Distribution Panel...
S e r v i c e I n f o r m a t i o n Fitting Fasten the panel to the inner roof of the electronics chamber with the 8 screws. Attach the two pairs of bus bars. Plug the various connectors into the board.
S e r v i c e I n f o r m a t i o n Motherboard SH-22 Removing Unplug all cables and leads from the back panel connectors (i.e. serial, parallel, video, keyboard, mouse) on the motherboard and from any expansion cards.
S e r v i c e I n f o r m a t i o n Rotate the right edge of the plate slightly towards you and unhook the left edge. Removing the plate uncovers the motherboard: Figure 4-40 Motherboard Floppy Disk Cable System Management Interface Card (SMIC)
S e r v i c e I n f o r m a t i o n Now remove the System Management Interface Card (SMIC). Unplug its ribbon cable, which is attached to the distribution board at the top of the electronics chamber, using the ejector latches: Figure 4-41 - SMIC Connector Ejector Latches Ejector Latches Connector...
S e r v i c e I n f o r m a t i o n 12. Now remove 14 screws which secure the board to the centre spine of the server, as shown: Figure 4-42 Motherboard Securing Screws Motherboard Securing Screws 13.
S e r v i c e I n f o r m a t i o n Fitting Attach the motherboard to the centre spine of the server using the 14 screws as shown in the following illustration: Figure 4-43 Motherboard Securing Screws Motherboard Securing Screws Reconnect the hard disk cables from the drive modules to the...
S e r v i c e I n f o r m a t i o n Plug the five DC power cables into their respective connectors on the power distribution board at the top of the electronics chamber. These connectors are keyed and cannot be plugged incorrectly.
S e r v i c e I n f o r m a t i o n Motherboard Cooling Fan Assembly Removing Remove five screws on the side of the fan assembly. Remove four more screws which fasten the assembly to the centre spine of the server, as shown: Figure 4-45 Removing Cooling Fan Assembly Side Securing Screws...
S e r v i c e I n f o r m a t i o n Before removing the assembly entirely, unplug the ribbon cable from the connector on the small power distribution panel between the bottom and middle fans: 4-46 Connectors on Small Power Distribution Panel Ribbon Cable Connector Fan Thermistor Cables...
S e r v i c e I n f o r m a t i o n Hard Disk Drive Power Distribution Panel Removing Remove the motherboard cooling fan assembly. This uncovers three bus bars which are attached to the power distribution panel, through a cut-out in the centre spine, and to the power supply, as shown in the following illustration: Figure 4-47 Bus Bars Connected to Hard Disk Power Distribution Panel...
S e r v i c e I n f o r m a t i o n Remove 11 screws as shown in the following diagram and lift out the panel. Figure 4-48 Hard Disk Power Distribution Board Power Distribution Panel Removable Media Drives Securing Screws SMC Board...
S e r v i c e I n f o r m a t i o n Fitting With all hard disk drives, drive modules and the motherboard cooling fan assembly removed, attach the hard disk distribution board to the centre spine of the server, in the disk chamber, using the 11 screws as shown: Figure 4-49 Hard Disk Power Distribution Board Power Distribution Panel...
S e r v i c e I n f o r m a t i o n In the electronics chamber, attach the three bus bars as shown: Figure 4-50 Bus Bars Connected to Hard Disk Power Distribution Panel Note You must use a torque wrench to tighten the bus bar bolts.
S e r v i c e I n f o r m a t i o n Removable Media Drive Bay Power Distribution Panel Removing In the electronics chamber, unplug two power cables as shown in SH-51 the following diagram: Figure 4-51 Removable Drive Bay Power Distribution Panel Cable Connectors Securing Screws...
S e r v i c e I n f o r m a t i o n Fitting Fasten the power distribution panel onto the centre spine of the server with the six screws as shown: Figure 4-52 Removable Drive Bay Power Distribution Panel Cable Connectors Securing Screws Connect the two power cables as shown in the previous illustration.
S e r v i c e I n f o r m a t i o n Loudspeaker Removing Remove the motherboard cooling fan assembly. Unplug the loudspeaker cable from the connector on the motherboard power distribution panel, as shown: Figure 4-53 Loudspeaker Connector Loudspeaker Connector Cooling Fan Assembly...
S e r v i c e I n f o r m a t i o n Remove the four screws which fasten the loudspeaker onto the front drive bay door housing, as shown: Figure 4-54 Loudspeaker Loudspeaker Securing Screws Removable Media Drive Bay Thread the cable through the opening behind the cooling fan assembly and remove the loudspeaker.
S e r v i c e I n f o r m a t i o n Fitting Remove the motherboard cooling fan assembly. Use the four screws to attach the loudspeaker to the front drive bay door housing, as shown: Figure 4-55 Loudspeaker Loudspeaker Securing Screws Removable Media Drive Bay...
S e r v i c e I n f o r m a t i o n Plug the cable into the loudspeaker connector on the motherboard power distribution panel as indicated in the following illustration: Figure 4-56 Loudspeaker Connector Loudspeaker Connector Cooling Fan Assembly Power Distribution Panel...
S e r v i c e I n f o r m a t i o n Uninterruptible Power Supply Unit The UPS unit consists of the actual power supply and the accompanying battery pack. The unit is very robust and is very heavy, approximately 35kg including battery pack.
S e r v i c e I n f o r m a t i o n Removing It is vitally important to ensure that the system is shut down, the battery pack circuit breaker switch is in the Off position and the system is disconnected from the mains electricity supply.
S e r v i c e I n f o r m a t i o n also attached to the power distribution panel at the top of the electronics chamber. Unplug three cables, one ribbon, one 12-way and one 16-way, from the power supply as shown: Figure 4-59 Disconnecting Power Supply Cables System Controller...
S e r v i c e I n f o r m a t i o n Loosen four floating fasteners, two on each side of the server, until they are free of the power supply unit, as indicated in the following diagram: Figure 4-60 Power Supply Floating Fasteners Floating Fasteners...
S e r v i c e I n f o r m a t i o n Using the handle on the battery pack, pull the unit carefully until it is a little less than halfway out (about 30cm), just before it begins to tip towards you.
S e r v i c e I n f o r m a t i o n Fitting With the help of a second person on the opposite side, place your hands underneath the power supply as indicated by the arrows in the following illustration: Figure 4-63 Fitting the Power Supply Now carefully slide the unit all the way into the chassis.
S e r v i c e I n f o r m a t i o n Now tighten the four floating fasteners, two on each side, located towards the front of the machine: Figure 4-65 Power Supply Floating Fasteners Floating Fasteners Front Bezel OWNER’S HANDBOOK 4-65...
S e r v i c e I n f o r m a t i o n Plug the ribbon, 12-way and 16-way cables into their connectors on the power supply: Figure 4-66 Connecting Power Supply Cables System Controller Removable Media Drive Bay Connector (Ribbon Cable) Connector (12-way)
S e r v i c e I n f o r m a t i o n Attach two pairs of bus bars and fit one set of 3 bus bars as shown: Figure 4-67 - Bus Bars Motherboard Bus Bars Bus Bars for Hard Disk Power Distribution Panel As with the cables, it is not possible to fit these bars incorrectly.
S e r v i c e I n f o r m a t i o n UPS Battery Pack The UPS is equipped with a replaceable battery pack. It will provide electric power for your system for a specific period of time, depending on how many hard disks or other devices are installed.
S e r v i c e I n f o r m a t i o n Pull the battery pack handle carefully and slide the pack out slowly until the power connector, as shown in the following illustration, appears: Figure 4-69 Unplugging the Battery Pack Power Connector Gently pull the connector apart as indicated.
S e r v i c e I n f o r m a t i o n Push the pack the rest of the way into the chassis. Figure 4-71 Refitting the Battery Pack Use the screws as shown in the previous diagram to secure the battery pack.
TECHNICAL INFORMATION This section contains technical information about your Apricot under the following topics: ♦ Functional Architecture ♦ Memory ♦ Central Processing Unit ♦ Motherboard ♦ Switches and Jumpers ♦ I/O Connectors and Headers ♦ System Management Interface Card (SMIC) ♦...
T e c h n i c a l I n f o r m a t i o n Functional Architecture Your server’s functional divisions consist of the following: ♦ Motherboard ♦ System Management Controller ♦ Front Panel ♦ Uninterruptible Power Supply (UPS) ♦...
T e c h n i c a l I n f o r m a t i o n The architecture of your server supports symmetrical multiprocessing (MP) and a variety of operating systems. The server is equipped with both PCI (Peripheral Component Interconnect) and EISA (Extended Industry Standard Architecture) busses.
T e c h n i c a l I n f o r m a t i o n Memory Server memory is located on one or two ECC memory module expansion cards. Fully loaded, one card provides 384 Mbytes of common high- speed memory for the server.
T e c h n i c a l I n f o r m a t i o n Memory Map Address Range (hex) Amount Function 0000,0000 – 0003,FFFF 256 KB Base system memory (fixed) 0004,0000 – 0007,FFFF 256 KB Base system memory (fixed) 0008,0000 –...
T e c h n i c a l I n f o r m a t i o n Central Processing Unit The server’s CPU is found on an add-on CPU card and not on the motherboard. The system will accept either a single or dual processor module.
T e c h n i c a l I n f o r m a t i o n ♦ Compatible Intel proprietary bus interface providing support for: − 64-bit data bus − Bus level symmetrical multiprocessing − 64/128-bit memory only (ECC) memory 4 × 16 −...
T e c h n i c a l I n f o r m a t i o n Motherboard Expansion Slots EISA Slots The six EISA bus slots on the motherboard provide for expansion and performance enhancement. Two of these share a common chassis I/O expansion slot with two of the PCI slots;...
T e c h n i c a l I n f o r m a t i o n The PCI bus provides: ♦ 32- and 64-bit memory addressing ♦ +5 V and + 3 V signalling environments ♦ Burst transfers at 133 Mbytes per second ♦...
T e c h n i c a l I n f o r m a t i o n output drivers can directly drive a 48 mA, single-ended SCSI bus with no additional drivers. No additional logic, termination, or resistor loads are required to connect up to seven 8-bit narrow SCSI devices or up to fifteen 16-bit wide SCSI devices to each SCSI-2 channel on the system board.
T e c h n i c a l I n f o r m a t i o n I/O Address(es) Resource 03BC – 03BF Parallel Port 1 (Primary) 03C0 – 03CF Enhanced Graphics Adapter 03D4 – 03DA Color Graphics Controller 03E8 –...
T e c h n i c a l I n f o r m a t i o n EISA Slot Assignments EISA Slot (hex) Device System board 1−8 EISA expansion boards 9−A Embedded SCSI Memory module Memory module (expansion module) Primary PCI segment CPU1 module CPU2 module...
T e c h n i c a l I n f o r m a t i o n COM3; if enabled, it can be set for EISA add-in boards using the SCU COM4; if enabled, it can be set for EISA add-in boards using the SCU Onboard PS/2 mouse port, if enabled Math coprocessor error...
T e c h n i c a l I n f o r m a t i o n Switches and Jumpers SH-63 This section explains how to set the motherboard switches and jumpers for specific operating parameters. The following diagram shows the positions of the switches and jumpers and indicates their default settings: S8C1 1 2 3...
T e c h n i c a l I n f o r m a t i o n CMOS S8C1-1 Setting this switch to ON clears CMOS and sets it and the real-time clock (RTC) to the manufacturing defaults during system reset. Setting it to OFF preserves the settings during system reset.
T e c h n i c a l I n f o r m a t i o n Flash Memory S8C1-3 This switch enables or disables writing to the motherboard Flash memory. To set this switch: With the side panel removed and the electronics chamber uncovered, set this switch to ON to apply +12V power to the VPP pin on the flash memory device.
T e c h n i c a l I n f o r m a t i o n Video Sleep Jumper J6A1 The video address jumper determines which I/O port the onboard Cirrus Logic CL-GD5424 super VGA controller uses for its internal AT mode setup port.
T e c h n i c a l I n f o r m a t i o n To recover the BIOS, do this: Remove the CPU module from slot CPU 1. Move the jumper to pins 2 and 3 to enter the recovery mode. Ensure that Switch S8C1-3 is in the ON position.
T e c h n i c a l I n f o r m a t i o n Power Control Jumper J9C3 This jumper (PWR CLR) enables power supply maintenance voltage control using the RTC. To disable the RTC power control, do this: Remove the side cover and the ECC memory module from slot MEM 2 as described in Chapter 4, Service Information.
T e c h n i c a l I n f o r m a t i o n I/O Connectors and Headers This section lists the pin numbers for the various connectors and headers on the motherboard. The following illustration shows the locations of the connectors and headers: Figure 5-2 Motherboard Connectors and Headers* PS3, PS4;...
T e c h n i c a l I n f o r m a t i o n Power Connectors These connectors provide power for add-in EISA/ISA boards, PCI boards, CPU modules, ECC memory modules, and the system board. All power connector pins are rated at 5 amperes.
T e c h n i c a l I n f o r m a t i o n PS5 Connector J9D1 (B) Signal Signal 3.3VRD Sense+ 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V PS6 Connector J1A1 (U) Signal Signal...
T e c h n i c a l I n f o r m a t i o n Diskette Drive Header J9F2 (E) Signal Signal GND (ground) Head direction Density select GND (ground) GND (ground) Step Not connected GND (ground) Key (pin missing) Write data...
T e c h n i c a l I n f o r m a t i o n Front Panel Header J9H1 (F) Signal Signal SPKDAT( speaker data) +5 V (speaker power) +5 V standby C-SDA PS-ON (power supply on) Chassis switch return FP Reset (front panel LCD-SD...
T e c h n i c a l I n f o r m a t i o n IDE Header J9F1 (G) Signal Signal IDERST (reset) IDEDRQ (DMA request 3) GND (ground) GND (ground) ID7 (data bit 7) IDEIOW (I/O write) ID8 (data bit 8) GND (ground)
T e c h n i c a l I n f o r m a t i o n CPU Auxiliary Connectors J7D1 and J6D1 (I and J) Signal Signal +3.3 VDC-1 +3.3VDC-2 +3.3 VDC-1 +3.3VDC-2 +3.3 VDC-1 +3.3 VDC-2 +3.3 VDC-1 +3.3 VDC-2 +3.3 VDC-1...
T e c h n i c a l I n f o r m a t i o n Memory Module Connectors , J8J1 and J9J1, and CPU Module Connectors, J6J1 and J7J1, (H for memory, I and J for CPU) The system board connector pin assignments and signals in Table B of this section are identical for all four connectors except for the ones specified in Table A.
T e c h n i c a l I n f o r m a t i o n Signal CPU 2 CPU 1 MEM 2 (J8J1) MEM 1 (J9J1) (J6J1) (J7J1) SYNC#/SEL6# SYNC# SYNC# SEL8# SEL6# /SEL8# (MSEL3#) (MSEL3#) IRQ13B/A/ IRQ13B/...
T e c h n i c a l I n f o r m a t i o n Table B CPU and Memory Module Connectors J8J1, J9J1, J6J1, & J7J1 (continued on next page) Signal Signal FLSHREQ# (reserved) DISABLEX# I2C_SDA VSS [no connection]...
T e c h n i c a l I n f o r m a t i o n Signal Signal RESP1# (CFG9#) STAT0 STAT1 MISS# STAT2 ASTB# CSLTCHE# CSLTCHO# ODD# EVEN# MBE1# MBE3# MBE0# MA3 (CFG3#) MBE2# MA5 (CFG5#) MA2(CFG2#) MA4 (CFG4#) MA11...
T e c h n i c a l I n f o r m a t i o n Fan Headers J4J3 and J1J1 (L and P) These headers are identical. Signal GND (ground) +12 V Fan sense SCSI Controller Activity Light Headers J4J2 and J1J2 (M and O) These headers are identical.
T e c h n i c a l I n f o r m a t i o n SCSI Channels A and B Headers J0J1 and J0G2 (R) These Adaptec AIC-7870 PCI SCSI controller channels are identical. Signal Signal 1−16 GND (ground)
T e c h n i c a l I n f o r m a t i o n PCI Connectors J0B1, J1B1, J4B1, J4B2, and J6B1 (T and W) Signal Signal Signal Signal −12 V TRST- AD AD +12 V +3.3 V C/BE#...
T e c h n i c a l I n f o r m a t i o n EISA/ISA Connectors J0A1, J1A2, J2A1, J2A2, J3A6, and J3A7 (S and V) Table continues on following page. Signal Signal IOCHK- RSTDRV IRQ9 −5 V...
T e c h n i c a l I n f o r m a t i o n Signal Signal IRQ14 LA18 DACK0- LA17 DRQ0 MEMR- DACK5- MEMW- DRQ5 DACK6- DRQ6 SD10 DACK7- SD11 DRQ7 SD12 SD13 Master- SD14 SD15 * The minus sign next to the signal indicates active low.
T e c h n i c a l I n f o r m a t i o n Parallel Port J7A1 (X) The parallel and video connectors share a common housing. When viewed on the rear panel, the parallel port is on the right. The parallel port sends data in parallel format, and it is used primarily for a printer.
T e c h n i c a l I n f o r m a t i o n VGA Video Port J7A1 (X) When viewed on the rear panel, the video port is on the left. Signal Signal GND (ground) Green 11−12...
T e c h n i c a l I n f o r m a t i o n Serial Ports J8A1 (Y) These identical PS/2 compatible connectors share a common housing. When viewed on the rear panel, COM2 is on the left and COM1 is on the right.
T e c h n i c a l I n f o r m a t i o n Keyboard and Mouse Connectors J9A1 (Z) These identical PS/2 compatible connectors share a common housing. When viewed on the rear panel, the keyboard connector is on the left and the mouse connector is on the right.
T e c h n i c a l I n f o r m a t i o n System Management Interface Card (SMIC) The System Management Interface card is an ISA card designed to provide the interface between the motherboard and System Management Controller (SMC).
The Flash disk is a 2-Mbyte 12V part. Since the part requires a tight- toleranced 12V rail, a DC/DC converter generates the programming voltage. The part is protected from programming via an Apricot port. The 32-Kbyte SRAM is for use by the BIOS as a stack or for other storage purposes.
T e c h n i c a l I n f o r m a t i o n I/O Map I/O Address Port 0800h : write Port 80 Diagnostic Port 0120h : write BIOS page register 0120h : read Status register 0121h : write DOS Flash page register...
T e c h n i c a l I n f o r m a t i o n BIOS Page Register 120h (write only) This controls the BIOS and SRAM paging. All bits are cleared on reset. When the Flash disk/SRAM decoding is disabled, the BIOS has a page size of 32 Kbytes.
T e c h n i c a l I n f o r m a t i o n Control Register 122h (R/W) This contains miscellaneous control bits. All bits are cleared on reset. Bits Function IRQ select for COM port: 00 = No IRQ selected 01 = IRQ10 10 = IRQ14...
T e c h n i c a l I n f o r m a t i o n Management UART (COM3 or COM4) This is a standard 16550-compatible serial port, occupying 8 contiguous bytes. The Management UART interrupt is software selectable (Apricot Control Register) to be IRQ10, IRQ14 or IRQ15. The serial interface uses TTL levels.
T e c h n i c a l I n f o r m a t i o n Port 3 Bits Function Motherboard NMI# - active low ISA IOCHCK# - active low Clear warm reset interrupt - active low Diagnostic mode select - active low Interrupt : warm reset Interrupt : port 80 monitor...
T e c h n i c a l I n f o r m a t i o n Connectors Power Distribution Board Interface : 34-way header Signals Description SYSTXD TXD of system management port (TTL) SYSRXD RXD (TTL) SYSRTS Request To Send (TTL) SYSCTS...
T e c h n i c a l I n f o r m a t i o n System Management Controller The purpose of the System Management Controller (SMC) is to monitor and report the status of your system in terms of its integrity. It functions as the interface between the following: ♦...
T e c h n i c a l I n f o r m a t i o n Power Distribution Boards There are several power distribution boards in your server (see Chapter 4, Service Information, in this handbook for removal instructions). They are associated with the following components: ♦...
T e c h n i c a l I n f o r m a t i o n Uninterruptible Power Supply The Uninterruptible Power Supply is a self-contained battery-backed unit which supplies the system unit with all its power requirements. The following is a list of its major features: ♦...
T e c h n i c a l I n f o r m a t i o n Control Interface The PSU is controlled by an external module through its control interface. The PSU provides the control interface signals on a flying ribbon cable terminated by a flush-mounted 26-way IDC connector.
T e c h n i c a l I n f o r m a t i o n Latch signal will remain asserted. If the AC current is less than 15A the 15A latch signal is deasserted and the PSU changes to the Power On mode.
T e c h n i c a l I n f o r m a t i o n Battery voltage monitor output This output allows the System Management Unit to monitor the voltage level (nominally 48V) of the internal lead-acid batteries. Circuit breaker sense When the battery circuit breaker is open this signal is connected to 0V.
T e c h n i c a l I n f o r m a t i o n Battery Charge Monitor This PSU output has two functions. In the 0V-2.5V range it indicates the magnitude of the battery charge current (indicates 2.0V +/-10% at 0.5A). If there is a fault in the battery system the PSU should drive the output high (greater then 3.1V) to indicate the condition.
T e c h n i c a l I n f o r m a t i o n PSU mode truth table State AC Good DC Good Dead Don’t care Don’t care Power Off False False Standby True False Power On True...
APPENDIX - ANTISTATIC PRECAUTIONS Static electricity can cause permanent damage to electronic components. You should be aware of this risk and take precautions against the discharge of static electricity into the computer. Anyone can generate static electricity by moving on a chair, brushing against desks or walls, or simply walking across an ordinary carpet.
GLOSSARY Bus Bars Metal insulated bars, two pairs of which carry DC power from the Uninterruptible Power Supply to the power distribution panel at the top of the electronics chamber. This panel then supplies power to the motherboard and associated components. There is a third set of 3 bars, located behind the motherboard cooling fan assembly, which provides power to the hard disk drives via the hard disk power distribution panel.
G l o s s a r y HDD Module Backplane A series of small circuit boards on the back of the hard disk module. They are connected together by a SCSI interface cable and are semi-rigid to help overcome excessive vibration that can sometimes occur. All hard disks in the server are connected to the module backplane.
G l o s s a r y Security System A system of audible and visual alarms that warns of unauthorized access to the interior of the server or tampering with the front panel controls. Security Token The implement which activates the alarms after the security system has been enabled.
G l o s s a r y UPS Circuit Breaker Switch A switch on the back panel of the server which isolates the power supply from the mains electricity. This switch should always be set to Off when any service procedure or other exceptional intrusion into the machine is carried out.
Disk drive module power INDEX connector, seating, 4-10 socket, 4-9 Disk drive module, fitting, 4-9 Disk subsystem, 3-12 Drive bay Acoustic noise regulation, German, v removable media, 2-4 Admin Password prompt box, 2-17 Drive bay door, 2-2 Administrative SCU password, 2-16 lockable, 2-4 Air intake vents, 2-1, 2-2 Drive bay door circlip...
I n d e x motherboard cooling fan assembly, 4-47 motherboard power distribution panel, 4-39 removable media drives, 4-23 I/O connectors and headers System Controller cooling fan assembly, 4-29 technical description, 5-21 System Management Controller Board, 4-27 I/O map, 5-10 the disk drive module, 4-9 Identification number, SCSI, 4-4 the drive module, 4-11...
I n d e x Modem port Power On Self Test, 3-13, 4-5 SMC, 2-3 Power supply Motherboard, 2-5, 5-8 connectors, 4-60, 4-65 components, 4-41 securing screws, 4-61, 4-63 expansion slots, 5-8 Precautions, antistatic, 3-5, 3-7, 4-2 fitting, 4-44 Preliminary service tasks, 4-1 protective metal plate, 4-40 Primary hard disk module, 4-8 removing, 4-40...
I n d e x Standby Button, 2-1, 2-2, 2-9 mode, 3-1 Safety and regulatory notices, ii Static electricity, sensitivity to, 3-5 SCSI Structure of Owner's Handbook, 1-3 connector, hard disk, 3-15 Stud for antistatic strap, 2-3 device address, 3-15, 4-6 Subsystem hard disk controller, 4-66 hard disk, 2-4...
I n d e x battery voltage monitor output, 5-60 circuit breaker sense, 5-60 control interface, 5-57 DC current monitor, 5-60 DC good output, 5-58 fitting, 4-63 Power on input, 5-57 precautions, 4-58 PSU mode truth table, 5-64 PSU state diagram, 5-62 removing, 4-59 shutdown input, 5-58 technical description, 5-56...
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