SGI™1450 Server
Maintenance Guide
Document Number 007-4276-001
Cover design by Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications.
© 2000, Silicon Graphics, Inc.— All Rights Reserved
The contents of this document may not be copied or duplicated in any form, in whole or in part, without the prior written permission of Silicon
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This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. This
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Record of Revision
Version Description
001 June 2000
Initial Rev
007-4276-001 iii
Contents
Figures ..........................xi
Tables ..........................xiii
About This Guide.......................xv
ObtainingPublications.....................xv
ReaderComments.......................xv
1. Detailed Chassis Description ...................1
ChassisFeatures.......................2
Peripherals.........................9
PeripheralBay.......................9
DeviceBay......................9
MediaBay.......................9
HardDriveBay......................10
PowerSubsystem.......................11
SystemCooling .......................14
E-Bay..........................17
ChassisFrontControlsandIndicators.................18
RearPanelI/OPortsandFeatures..................19
2. Removing and Installing System Components ..............21
ToolsandSuppliesNeeded....................22
Pre-InstallationSafetyPrecautions..................22
FrontCover.........................23
RemovingtheFrontCover...................23
InstallingtheFrontCover...................24
TopCover.........................25
RemovingtheTopCover ...................25
InstallingtheTopCover....................25
007-4276-001 v
Contents
MemoryRetentionBar......................26
RemovingtheMemoryRetentionBar................26
InstallingtheMemoryRetentionBar................27
Baseboard.........................27
RemovingtheBaseboard....................28
InstallingtheBaseboard....................31
PowerSubsystem.......................33
RemovingaPowerSupplyModule.................35
InstallingaPowerSupplyModule.................35
RemovingthePowerSubsystemBay................36
InstallingthePowerSubsystemBay.................37
CoolingSystem........................38
RemovingtheFanBoardAssembly.................39
InstallingtheFanBoardAssembly.................40
ReplacingtheFanBoard....................40
Removing and Installing Individual Fans ...............42
HardDriveBay........................42
RemovingtheHardDriveBay..................43
InstallingtheHardDriveBay..................44
PeripheralDevices.......................45
RemovingaDrivefromtheMediaBay................45
InstallingaDriveintheMediaBay.................46
ReplacingaDriveintheDeviceBay.................46
SCSIRequirements.......................47
3. Removing and Installing Baseboard Components .............49
ToolsandSuppliesNeeded....................50
Pre-InstallationSafetyPrecautions..................50
BaseboardConnectorandComponentLocations..............52
Memory..........................53
RemovingtheMemoryModule..................55
InstallingtheMemoryModule..................55
RemovingDIMMs......................56
InstallingDIMMs......................56
vi 007-4276-001
Contents
Processors.........................57
RemovingaProcessor....................59
InstallingaProcessor.....................59
RemovingProcessorRetentionMechanisms..............59
InstallingProcessorRetentionMechanisms..............60
InstallingProcessorHandles ..................60
InstallingProcessorHeatsinks..................60
VoltageRegulatorModules(VRMs)..................61
RemovingaVRM......................62
InstallingaVRM......................62
BackupBattery........................63
Add-inBoards........................65
Removinga32-bit,33-MHzHalf-LengthPCIAdd-inBoard .........65
Installinga32-bit,33-MHzHalf-LengthPCIAdd-inBoard..........66
Removinga64-bit,66/33-MHzHot-PlugPCIAdd-inBoard.........67
Installinga64-bit,66/33-MHzHot-PlugPCIAdd-inBoard..........69
ICMBCard.........................70
InstallinganICMBCard....................71
RemovinganICMBCard ...................73
4. Solving Problems .......................75
ResettingtheSystem......................75
InitialSystemStartup......................75
NewApplicationSoftware....................76
AftertheSystemHasBeenRunningCorrectly...............77
007-4276-001 vii
Contents
SpecificProblemsandCorrectiveActions................77
PowerLightDoesNotLight...................78
NoBeepCodes.......................78
NoCharactersAppearonScreen .................79
CharactersAreDistortedorIncorrect................79
SystemCoolingFansDoNotRotateProperly..............80
DisketteDriveActivityLightDoesNotLight..............80
HardDriveActivityLightDoesNotLight...............81
CD-ROMDriveActivityLightDoesNotLight .............81
ProblemswithApplicationSoftware................81
ErrorandInformationalMessages..................82
EquipmentLog........................84
A. Technical Reference ......................87
InternalCablesandConnectors...................87
ConnectorsAccessibletotheUser..................90
KeyboardandMousePorts...................90
SerialPorts........................90
ParallelPort .......................91
VideoPort........................92
UniversalSerialBus(USB)Interface.................93
ICMBConnectors......................94
EthernetConnector.....................94
InternalSCA-2HDDConnector..................95
ExternalAdaptecUltra160/mSCSI.................97
ACPowerInput......................99
PeripheralAdapterBoardsandConnectors...............100
CD-ROMConnectors....................100
FloppyConnectors ....................103
viii 007-4276-001
Contents
BaseboardConnectors .....................105
PowerDistributionBoardInterfaceConnectors(J9B1,J9D1,J9B2)........107
FrontPanelInterface(J9E3)...................111
Hot-PlugPCIIndicatorBoardInterface(J3D1).............113
MemoryModuleInterface(J6F1).................115
ProcessorModuleConnector(J7A1,J7B1,J7C1,J7D1)...........119
ProcessorTermination,Regulation,andPower.............123
TerminationCard......................125
ServerMonitorModuleConnector(J7H1)...............125
SMBusConnector(J9E4)....................127
ICMBConnector(J1D2)....................127
Auxiliary I
2
CConnector(J9E4)..................128
BaseboardFanConnectors(J3C1,J3A1,J4A1,J4C1)............128
InternalDiskDriveLEDConnection................130
BaseboardJumpers......................131
ChangingJumperSettings....................133
CMOSClearJumper.....................133
PasswordClearJumper....................135
RecoveryBootJumper....................136
Interrupts.........................137
VideoModes........................138
B. Physical Environment Specifications .................141
Index ..........................143
007-4276-001 ix
Figures
Figure 1-1 ServerinRack-MountableConfiguration........3
Figure 1-2 FrontCoverRetainingScrews ...........4
Figure 1-3 TopCoverThumbscrew.............5
Figure 1-4 (Left) Server without Covers. (Right) Overhead View of E-Bay . . 6
Figure 1-5 HardDriveinDriveCarrier............10
Figure 1-6 PowerSubsystem...............12
Figure 1-7 FanBoardAssembly..............15
Figure 1-8 FanLEDs .................16
Figure 1-9 FrontPanelControlsandIndicators..........18
Figure 1-10 RearPanelI/OPortsandFeatures..........19
Figure 2-1 MemoryRetentionBar..............27
Figure 2-2 PowerSupplyACBracket.............29
Figure 2-3 E-BayRetainingScrews.............30
Figure 2-4 RearRetentionMechanism............31
Figure 2-5 PowerSubsystem...............34
Figure 2-6 MetalPlateCoveringthePowerSubsystemBay......38
Figure 2-7 FanBoardAssemblyScrew............39
Figure 2-8 FanAssemblyRotatedawayFromItsBase........41
Figure 2-9 HardDriveBayTabs..............43
Figure 2-10 RemovingtheHardDriveBayfromtheChassis......44
Figure 2-11 LocationoftheMediaBayScrew...........45
Figure 3-1 BaseboardConnectorandComponentLocations......52
Figure 3-2 MemoryModuleDIMMInstallationSequence.......54
Figure 3-3 DIMMOrientationinaMemoryModule........57
Figure 3-4 ProcessorOrientationandComponents.........58
Figure 3-5 InstallingaVRM...............63
Figure 3-6 FrontHot-PlugRetentionMechanism.........68
007-4276-001 xi
Figures
Figure 3-7 ICMBCard.................71
Figure 3-8 ExampleofanICMBCardAttachedtoaChassis......72
Figure 3-9 InternalCableAttachedtotheICMBCard........72
Figure 3-10 ExternalCableAttachedtotheCard..........73
Figure A-1 DetailedDiagramofConnectorLocations.......105
Figure A-2 BaseboardConfigurationJumpers .........131
xii 007-4276-001
Tables
Tab le 1 -1 SGI1450ServerPhysicalSpecifications.........2
Tab le 1 -2 ChassisFeatureSummary.............7
Tab le 1 -3 HardDriveLEDStateStatus............11
Tab le 1 -4 ACPowerLEDStateStatus............14
Tab le 1 -5 FanLEDStateStatus..............16
Tab le 3 -1 VRM/ProcessorPowerSequencing..........61
Tab le 3 -2 Processor/VRMPopulationSequencing ........61
Tab le 4 -1 ResettingCommands..............75
Tab le 4 -2 StandardBIOSPort-80Codes............82
Tab le 4 -3 RecoveryBIOSPort-80Codes............83
Tab le 4 -4 EquipmentLog................84
Tab le A -1 SGI1450serverCablesandConnectors.........87
Tab le A -2 KeyboardandMouseConnectors..........90
Tab le A -3 SerialPorts.................91
Tab le A -4 ParallelPort.................91
Tab le A -5 VideoPort.................92
Tab le A -6 USBConnector................93
Tab le A -7 ICMBConnectors...............94
Tab le A -8 EthernetConnector...............94
Tab le A -9 InternalSCA-2HDDConnector...........95
Tab le A -10 ExternalAdaptecUltra160/mSCSI..........97
Tab le A -11 CD-ROMAdapterBoard40PositionIDEConnector.....100
Tab le A -12 CD-ROMAdapterBoardPowerConnector........101
Tab le A -13 AudioConnector...............101
Tab le A -14 CD-ROMJAEConnector.............101
Tab le A -15 34-PositionFloppyConnectorPin-Out.........103
Tab le A -16 FloppyAdapterBoardPowerConnector........104
007-4276-001 xiii
Tables
Tab le A -17 FFCconnector...............104
Tab le A -18 ConnectorDescription.............106
Tab le A -19 MainPowerConnectorA(J9B1)..........108
Tab le A -20 MainPowerConnectorB(J9D1)..........109
Tab le A -21 AuxiliaryPowerConnector(J9B2) .........110
Tab le A -22 FrontPanelConnector(J9E3)...........111
Tab le A -23 Hot-PlugIndicatorBoardConnectorPinout(J3D1).....114
Tab le A -24 MemoryModuleInterface............115
Tab le A -25 ProcessorCardConnector(J7A1,J7B1,J7C1,J7D1).....119
Tab le A -26 ProcessorVRMConnectors(J2A2,J2B1,J2C1)......123
Tab le A -27 ServerMonitorModuleConnectorPinout.......126
Tab le A -28 SMBusConnector(J9E4)............127
Tab le A -29 ICMBConnector(J1D2).............128
Tab le A -30 IMBConnector(J8F1).............128
Tab le A -31 ProcessorFanConnector#1(J3C1).........129
Tab le A -32 ProcessorFanConnector#2(J3A1).........129
Tab le A -33 ProcessorFanConnector#3(J4A1).........130
Tab le A -34 ProcessorFanConnector#4(J4C1).........130
Tab le A -35 InternalDiskDriveLEDConnector.........130
Tab le A -36 ConfigurationJumperSettings ..........132
Tab le A -37 ConfigurationofJumpers............132
Tab le A -38 BeepCodes................136
Tab le A -39 InterruptDefinitions.............137
Tab le A -40 StandardVGAModes.............138
Tab le B -1 EnvironmentalSpecifications...........141
xiv 007-4276-001
About This Guide
This guide contains a detailed description of the SGI™ 1450 server chassis and provides
information on removing and installing field-replaceable components.
The information in this guide is intended for trained service personnel.
The following topics are covered:
• Detailed Chassis Description
• Removing and Installing System Components
• Removing and Installing Baseboard Components
•SolvingProblems
See the SGI 1450 Server User’s Guide for information on installing customer-replaceable
components and configuring software and utilities.
See the SGI 1450 Server Mounting Instructions for instructions on mounting the SGI 1450
server in a 19-inch rack.
See the SGI 1450 Server Quick Start Guide for information on setting up your system.
Obtaining Publications
To obtain SGI documentation, go to the SGI Technical Publications Library at
http://techpubs.sgi.com.
Reader Comments
Ifyouhavecommentsaboutthetechnicalaccuracy,content,ororganizationofthis
document, please tell us. Be sure to include the title and document number of the manual
007-4276-001 xv
About This Guide
with your comments. (Online, the document number is located in the front matter of the
manual. In printed manuals, the document number can be found on the back cover.)
You can contact us in any of the following ways:
• Send e-mail to the following address:
techpubs@sgi.com
• Use the Feedback option on the Technical Publications Library World Wide Web
page:
http://techpubs.sgi.com
• Contact your customer service representative and ask that an incident be filed in the
SGI incident tracking system.
• Send mail to the following address:
Technical Publications
SGI
1600 Amphitheatre Pkwy., M/S 535
Mountain View, California 94043-1351
• Send a fax to the attention of “Technical Publications” at +1 650 932 0801.
SGIvaluesyourcommentsandwillrespondtothempromptly.
xvi 007-4276-001
Chapter 1
1. Detailed Chassis Description
This chapter provides a detailed description of chassis features. For a general
description, see the SGI 1450 Server User’s Guide.
The following sections are covered:
• Chassis Features
• Peripherals
•HardDriveBay
•PowerSubsystem
• System Cooling
•E-Bay
• Chassis Front Controls and Indicators
• Rear Panel I/O Ports and Features
007-4276-001 1
1: Detailed Chassis Description
Chassis Features
The SGI 1450 server is designed either to be mounted in a standard 19-inch rack (rack
mode) or to stand upright (pedestal mode). Table 1-1 shows the physical specifications
for the SGI 1450 server in rack mode.
For instructions on mounting the SGI 1450 server in a 19-inch rack, see the SGI 1450
Server Mounting Instructions.
Tab le 1 -1 SGI 1450 Server Physical Specifications
Specification Rack Mode
Height 4u (7 inches)
Width 17.5-inch rack
Depth 26.5 inches
Weight 57 lbs (26 kg), minimum configuration
88 lbs (40 kg), maximum configuration
Required front clearance 3 inches (inlet air temperature <35 °C / 95 °F)
Required rear clearance 6 inches (no airflow restriction allowed)
Required side clearance 1 inch
2 007-4276-001
Figure 1-1 shows an SGI 1450 server in rack-mountable configuration.
A
Chassis Features
B
C
D
Figure 1-1 Server in Rack-Mountable Configuration
A. Top cover. The top cover protects the contents of the chassis.
B. Front cover. The front cover protects the peripheral devices.
C. Front bezel door. When this door is open, you can access hard drives and peripheral
devices.
D. Front bezel.
007-4276-001 3
1: Detailed Chassis Description
The chassis has two covers: a front cover and a top cover. The front cover is held in place
by three screws. The screws are noted by “A” in Figure 1-2.
A
Figure 1-2 Front Cover Retaining Screws
4 007-4276-001
Chassis Features
The top cover is held in place by two thumbscrews, each located at the top rear corner of
the chassis. One of two thumbscrews is noted by “A” in Figure 1-3.
A
Figure 1-3 Top Cover Thumbscrew
A bezel snaps on to thefront of the chassis and allows adequate airflow to cool the system
components. The door in the bezel provides user access to hard drives and the peripheral
bay. Access to the power supplies is provided by removing the front bezel completely.
007-4276-001 5
1: Detailed Chassis Description
Figure 1-4 gives an overhead view of the system with the top cover and front bezel
removed.
E
D
C
A1
A2
B
E5
E3
E7
I
E6
E2
E4
H
G
E1
F
Figure 1-4 (Left) Server without Covers. (Right) Overhead View of E-Bay
Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA
energy hazard limit that defines an operator-accessible area. Only qualified service
technicians should access the processor, memory, power subsystem, and non-hot-plug
areas of the baseboard.
6 007-4276-001
Chassis Features
Table 1-2 summarizes the SGI 1450 server features, using the callouts provided in
Figure 1-4.
Tab le 1 -2 Chassis Feature Summary
Feature Description
A.Peripheral Bay
[A1 and A2]
A1. Peripheral Bay:
Device Bay
A2. Peripheral Bay:
Media Bay
B. Hard Drives The hard drive bay supports up to five 1.0-inch hot-swap Ultra 160
C. Power Subsystem Installed:
D. Cooling Installed:
A peripheral bay in the front of the system has a 5.25-inch device bay
and a media bay.
The device bay can hold a 5.25-inch CD-ROM or DAT device.
The media bay holds a 0.5-inch slim-line floppy drive and a 0.5-inch
slim-line CD-ROM drive.
SCSI hard drives.
If the operating system supports hot-swapping of hard drives, these
drives can be changed without shutting down the server.
A power subsystem bay that supports up to three 350-watt power
supply modules in a (2+1) redundant configuration.
The power subsystem bay is mounted at the front-left corner of the
chassis and is shipped with three power supply modules.
Each power supply can be changed without shutting down the server.
Fan board assembly and six fans in a redundant (5+1) fan array. The
fans cool the baseboard and other components.
In a 5+1 configuration, a failed fan may be removed and installed
without shutting down the server. This process is called
hot-swapping. Hot-swapping fans can only be performed by a
qualified service technician.
007-4276-001 7
1: Detailed Chassis Description
Table 1-2 (continued) Chassis Feature Summary
Feature Description
E. Electronics Bay
(E-Bay)
The E-Bay contains the baseboard. The baseboard has the following
major components:
Up to four Intel® Pentium® III Xeon™ processors
Server Set™ III HE chipset
Up to sixteen PC/100-compliant registered ECC SDRAM memory
modules that support up to 16 gigabytes of Error Checking and
Correcting (ECC) Synchronous Dynamic RAM
32-bit, 33-MHz, 5V PCI segment with two expansion slots and three
embedded devices
64-bit, 66/33-MHz, 3.3V hot-plug PCI segment with two expansion
slots and one embedded device
64-bit, 33-MHz, 5V hot-plug PCI segment with four expansion slots
and three embedded devices
Compatibility bus segment with three embedded devices
Two externally accessible USB ports
One IDE connector, supporting up to two ATA33 compatible devices
One Adaptec® AIC-7880 SCSI controller
One Adaptec AIC-7899 SCSI controller
The processors, SDRAM memory modules, and hot-plug PCI
components are listed individually below.
E1. Processors The system supports up to four Intel Pentium III Xeon processors.
E2. Registered SDRAM
Memory Expansion
Slots
The memory expansion board holds up to sixteen Dual Inline
Memory Module (DIMM) slots and supports up to 16 gigabytes of
Error Checking and Correcting (ECC) Synchronous Dynamic RAM.
E3. PCI Add-In Slots The baseboard contains two 32-bit 33-MHz non-hot-plug PCI slots.
These boards are half-length boards only.
E4. PCI Hot-Plug Slots The baseboard contains six hot-plug PCI slots. You can add, remove,
or exchange a PCI add-in board from any hot-plug slot without
shutting down the server.
NOTE: At this time, the Linux® operating system does not
support use of the PCI hot-plug (PHP) feature. If you are running
Linux, your system must be turned off before installing or
removing PCI boards. Windows 2000 requires drivers that are
PHP compatible in order to use the PHP feature.
8 007-4276-001
Table 1-2 (continued) Chassis Feature Summary
Feature Description
E5. Baseboard Form-factor, 16 (13 inches, ATX-style backpanel I/O)
The baseboard is mounted horizontally in a subassembly called the
E-Bay. The E-Bay is mounted towards the rear of the chassis.
The baseboard contains connectors for installing up to four Pentium
III Xeon processors in single-edge contact (SEC) cartridges.
Peripherals
Peripherals
Peripheral Bay
Device Bay
E6. Voltage Regulator
Module (VRM)
E7. Lithium Battery This battery is used to power the system clock.
F. Front This side is called the front of the E-Bay.
G. Right This side is called the right of the E-Bay.
H. Back This side is called the back of the E-Bay.
I. Left This side is called the left of the E-Bay.
The baseboard contains three embedded VRMs and connectors to
add three additional VRMs.
The chassis contains one peripheral bay for CD-ROM, DAT, and floppy drives. The
peripheral bay contains two smaller bays: a device bay and a media bay.
The device bay accommodates either a 5.25-inch CD-ROM or a DAT drive. We
recommends not installing any device, such as a hard drive, requiring airflow cooling in
the device bay. Installing such a device in this bay causes environmental conditions to
exceed the cooling and electromagnetic interference (EMI) constraints of the system.
Media Bay
The media bay accommodates a 0.5-inch slim line floppy drive and 0.5-inch slim line
CD-ROM drive.
007-4276-001 9
1: Detailed Chassis Description
Hard Drive Bay
The chassis contains one hard drive bay. The hard drive bay accommodates up to five
3.5-inch by 1.0-inch hot-swap Ultra 160 SCSI SCA hard drives
You can access the hard drives by opening the front bezel door. As part of the hot-swap
implementation, each hard drive requires a hard drive carrier. When you remove a hard
drive from the system, you remove both the carrier and the hard drive. The drive is
attached to the carrier by four screws. The carrier locks into the hard drive bay by a
locking handle. Figure 1-5 shows the orientation of the drive in the carrier. The carrier is
upside down in this figure.
E
A
Figure 1-5 Hard Drive in Drive Carrier
B
C
D
A. Hard drive carrier
B. Four fasteners used to attach drive to carrier
C. Hard drive
D. Connector
E. Locking handle
Each hard drive is connected to an Ultra 160 SCSI hot-swap backplane. The backplane
provides industry-standard 80-pin SCA-2 connectors for each hard drive and accepts
10,000 RPM or slower drives that consume up to 23 watts of power. If another type or
slower Ultra 160 SCSI SCA drive is installed, make sure that the drive meets these
backplane and carrier requirements.
10 007-4276-001
Power Subsystem
An LED above each hard drive displays the status of that hard drive. Table 1-3 shows the
hard drive LED status.
Tab le 1 -3 Hard Drive LED State Status
LED State Status
Solid green The hard drive is present and powered on.
Flashing green The hard drive is active.
Solid yellow There is an asserted fault status on the hard drive.
Flashing yellow A rebuild of the hard drive is in progress.
Off The hard drive is not powered on.
The SCSI backplane boardset consists of two separate boards: the SCSI backplane board
and the SCSI-accessed fault-tolerant enclosures specification (SAF-TE) board. The SCSI
backplane board provides power distribution and SCSI interfacing of the hard drives.
The SAF-TE board provides SAF-TE features and hard drive failure indicators.
Power Subsystem
The SGI 1450 server uses a universal input-switching power subsystem (PSBS). This
subsystem provides up to 630 watts DC. The subsystem also minimizes the RMS current
drawn from each AC line by providing power factor corrected AC input. The chassis can
be configured with one, two, or three 350-watt power supply modules. Each module is
designed to minimize electromagnetic interference (EMI) and radio frequency
interference (RFI).
007-4276-001 11
1: Detailed Chassis Description
A
Figure 1-6 Power Subsystem
Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA
energy hazard limit that defines an operator-accessible area. Only qualified service
technicians should access the processor, memory, power subsystem, and non-hot-plug
areas of the baseboard.
The power subsystem consists of a power subsystem bay, with up to three power supply
modules. The power supply modules are noted by “A” in Figure 1-6. The power
subsystem bay contains a power distribution board, which manages the power delivered
by all functional power supplies.
The power subsystem can operate in either a nonredundant or redundant manner.
Nonredundant operation means that you are using only one or two power supply
modules. If the module ceases to function normally, the server system cannot function
properly, if at all. A minimal configuration supported by one module is one processor,
four memory DIMMs, one hard drive slower than 10,000 PRM, one floppy drive, and one
CD-ROM.
12 007-4276-001
Power Subsystem
The SGI 1450 server uses a redundant (2+1) power subsystem. To form a (2+1) redundant
power subsystem, the subsystem parallels the DC output of one power supply module
with one or two other modules. If one module ceases to function normally, the remaining
modules provide power to the server system and the system continues to function
properly.Twopower supply modules are required toprovide power to a fully configured
SGI 1450 server. The third module provides redundancy. A fully configured system
includes four processors, sixteen gigabytes of memory, one floppy drive, one CD-ROM,
five hard drives, and eight PCI add-in boards.
The baseboard contains three embedded voltage converters: two 5 V input and one 12 V
input. The baseboard also provides three connectors supporting 8.3-compliant, plug-in
voltage regulator modules (VRMs).
Each power subsystem auto-senses within the following voltage ranges and is rated as
follows:
• 100-120 V~ at 50/60 Hertz (Hz); 11.0 A maximum
• 200-240 V~ at 50/60 Hz; 5.5 A maximum
The DC output voltages of each power supply module are:
• +3.3 V at 28 A max (total combined power of the +3.3 and +5 channels must not
exceed 195 W)
• +5 V at 32 A max (total combined power of the +3.3 and +5 channels must not
exceed 195 W)
•+12Vat12.0Awith15.0Apeak
•-12Vat0.5A
• +5 V standby at 2 A whenever AC power is supplied to the server system
The DC output voltages of the power subsystem with two or three modules are:
• +3.3 V at 50 A max (total combined power of the +3.3 and +5 channels must not
exceed 351 W)
• +5 V at 58 A max (total combined power of the +3.3 and +5 channels must not
exceed 351 W)
•+12Vat22.0Awith28.0Apeak
•-12Vat0.5A
•+5Vstandbyat2A
007-4276-001 13
1: Detailed Chassis Description
DC power is sourced through 20-pin and 24-pin power cables to the baseboard. Remote
sensing signals are provided through one 14-pin auxiliary power cable to the baseboard.
The AC power status of each power supply module is indicated by an LED. The LED is
located on the power supply module. Table 1-4 shows the AC power LED status.
Tab le 1 -4 AC Power LED State Status
LED State Status
Solid green AC power is applied to the power subsystem and standby voltage is available.
Off The LED is off when one of the following conditions occur:
The power supply modules are disabled by the DC enable signal.
The power supply module is disabled by another switch.
The power supply module has been overstressed.
The power supply module has failed and replacement of the unit is necessary.
There are also three standby channels and each has an LED called a standby LED. These
LEDs are located on the right side of the power subsystem bay and each indicates the
status of that standby channel.
Individual power supply modules are hot-swappable. In other words, you can remove
and install a power supply module without shutting down the server. After a power
supply module has been removed from the system, airflow patterns are disrupted within
the system. To maintain correct airflow patterns within the chassis and to ensure that all
components remain within specification under all system environmental conditions,
power supply module hot-swap operations should not exceed two minutes in duration.
System Cooling
The SGI 1450 server uses up to six fans mounted in a fan board assembly in the middle
of the chassis between the E-Bay and peripheral bays. The six fans are noted by “A” in
Figure 1-7.
14 007-4276-001
System Cooling
A
Figure 1-7 Fan Board Assembly
The cooling system supports either a non-redundant configuration or a redundant
configuration. A non-redundant configuration includes just three fans. If any oneof these
threefansceasestofunctionnormally,environmentalconditionswithinthechassismay
exceed the environmental regulations in this guide and the chassis may not function
normally. Three fans support any system configuration but without fan redundancy.
The SGI 1450 server uses all six fans to form a redundant cooling system. If one of the six
fans ceases to function normally, the remaining five fans adequately cool the system.
Using six fans supports any configuration up to the maximum configuration.
Air flows in through the front bezel over the power subsystem bay, the peripheral bay,
and the hard drive bay. The air then passes through the fan board assembly and the
E-Bay. Finally, the air exhausts through the rear and left side of the chassis.
Individual fan status indicators are located on the fan board mounted in the fan board
assembly. Fan failure is also indicated by the general fault LED located at the front of the
chassis.
007-4276-001 15
1: Detailed Chassis Description
An LED above each cooling fan displays the status of that fan. The LEDs for two fans are
noted by “A” in Figure 1-8. The LED on the left indicates the status of the fan pointed to
by the left arrow. The LED on the right indicates the status of the fan pointed to by the
right arrow.
A
Figure 1-8 Fan LEDs
Table 1-5 shows the fan LED state status.
Tab le 1 -5 Fan LED State Status
LED State Status
Solid amber There is a fault with the cooling fan or the cooling fan is not present.
Off The cooling fan is functioning properly.
!
16 007-4276-001
Caution: Thetopcovermustbeonthesystemforpropercooling.
Individual fans are hot-swappable. In other words, you can remove and install a fan
without shutting down the server. After a fan has been removed fromthe system, airflow
E-Bay
E-Bay
patterns are disrupted within the system. To maintain correct airflow patterns within the
chassis and to ensure that all components remain within specification under all system
environmental conditions, fan hot-swap operations should not exceed two minutes in
duration.
The E-Bay contains the baseboard with the following components:
• Up to four Intel Pentium III Xeon processors. The baseboard has four SC330.1
connectors; each supports a processor. There are also four embedded voltage
regulator modules (VRM) and three VRM 8.3-compliant connectors to support up
to four processors.
• The Server Set III HE chipset. This includes the HE North Bridge, Open South
Bridge (OSB4), and I/O.
• Up to sixteen PC/100-compliant registered ECC SDRAM memory modules that
support up to 16 gigabytes of Error Checking and Correcting (ECC) Synchronous
Dynamic RAM.
• 32-bit, 33-MHz, 5 V PCI segment with two expansion slots and three embedded
devices.
• 64-bit, 66/33-MHz, 3.3 V hot-Plug PCI segment with two expansion slots and one
embedded device.
• 64-bit, 33-MHz, 5 V hot-Plug PCI segment with four expansion slots and three
embedded devices.
• Compatibility bus segment with three embedded devices.
• Two externally accessible USB ports.
• One Adaptec AIC-7880 SCSI controller.
• One Adaptec AIC-7899 SCSI controller.
The Adaptec AIC-7899 SCSI controller has two channels called A and B. Channel A is
connected to the HDD backplane. Channel B is connected to the back of the system to
which external SCSI devices may be connected.
The Adaptec AIC-7880 SCSI controller supports both a legacy wide SCSI device and
legacy narrow SCSI device.
007-4276-001 17
1: Detailed Chassis Description
Chassis Front Controls and Indicators
Figure 1-9 shows the front panel controls and indicators.
B C
D0
D1
Figure 1-9 Front Panel Controls and Indicators
A. Power on/off button: If you press this button when the system is off, you turn on the
power subsystem. If you press this button when the system is in sleep state, you activate
it. If you hold down the button for more than 4 seconds, you override the ACPI mode
and the power is turned off.
B. Reset button: If you press this button, you reset the system. If you hold down this
button for 4 seconds or more, push on the power button, and then release both the reset
and power buttons within one second of each other, the CMOS will be cleared.
!
Caution: The CMOS should be cleared only if it has been corrupted.
C. Sleep button: If the operating system supports ACPI and you press this button, the
operating system goes into sleep state (S1). If you press this button during sleep state, the
operating system becomes active. This system does not have a service mode.
A
D2 D3
D. Front panel LEDs from left to right:
D0. General System Fault LED: Yellow indicates a system failure.
D1. NIC activity LED: Green indicates NIC activity.
D2. HDD activity LED: Green indicates any system hard drive activity.
D3. Main power LED: Solid green indicates the presence of DC power in the server.
Flashing green indicates that the system is in ACPI sleep mode.
18 007-4276-001
Rear Panel I/O Ports and Features
Figure 1-10 shows a detailed view of the rear panel I/O ports and features.
Rear Panel I/O Ports and Features
B
A
M
K
L
J
Figure 1-10 Rear Panel I/O Ports and Features
G
I
F
E
H
O
D
A. AC input power connector
B. External SCSI connector ports
C. Hot-plug 64-bit, 33-MHz PCI add-in board slots
D. Hot-plug 64-bit, 66/33-MHz PCI add-in board slots
N
C
E. Non-hot-plug 32-bit, 33-MHz PCI add-in board slots
These slots can also accept an Intelligent Chassis Management Bus (ICMB) SEMCONN
6-pin connector in/out
F. Vi de o c on n ec t or
G. USB ports 0 (upper) and 1 (lower), 4-pin connectors
H. NIC RJ45 connector
007-4276-001 19
1: Detailed Chassis Description
I. Serial port 2 (COM1), 9-pin RS-232 connector
J. IEEE 1284-compliant, 25-pin bi-directional parallel connector
K. Serial port 1 (COM1), 9-pin RS-232 connector
L. PS/2-compatible keyboard connector
M. PS/2-compatible mouse connector
N. HW push button
O. PCI green and amber LEDs (inside the chassis)
20 007-4276-001
Chapter 2
2. Removing and Installing System Components
This chapter provides information on removing and installing the following system
components:
•FrontCover
•TopCover
• Memory Retention Bar
•Baseboard
•PowerSubsystem
• Cooling System
•HardDriveBay
• Peripheral Devices
007-4276-001 21
2: Removing and Installing System Components
Tools and Supplies Needed
The following tools and supplies will allow you to remove and install all the system
components covered in this chapter:
• Phillips screwdriver (#1 and #2)
• Flat head screwdriver (#2)
• Jumper-removal tool or needle-nosed pliers
• Antistatic wrist strap and conductive foam pad (recommended)
•Penorpencil
• Equipment log: as new parts are integrated into the system, add information about
themtotheequipmentlog(see“EquipmentLog”onpage84).Recordthemodel
and serial number of the system, all installed options, and any other pertinent
information specific to the system. Some of this information may be required when
running the system setup utility (SSU).
Pre-Installation Safety Precautions
The following warnings and cautions apply whenever you remove the top and front
covers of the system. Only a technically qualified person should integrate and configure
the system.
Warning: Hazardous voltage, current, and energy levels are present inside the
power subsystem. There are no user-serviceable parts inside it; servicing should be
done by technically qualified personnel.
Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA
energy hazard limit that defines an operator-accessible area. Only qualified service
technicians should access the processor, memory, power subsystem, and non hot-plug
areas of the baseboard.
22 007-4276-001
Front Cover
Caution: ESD can damage disk drives, boards, and other parts. It is recommended that
!
all procedures in this chapter be performed only at an ESD-protected workstation. If one
is not available, provide some ESD protection by wearing an antistatic wrist strap
attached to chassis ground—any unpainted metal surface—on your system when
handling parts.
Front Cover
!
!
!
Caution: Always handle boards carefully. They can be extremely sensitive to ESD. Hold
boards only by their edges. After removing a board from its protective wrapper or from
the system, place it component-side UP on a grounded, static-free surface. If you place
the baseboard on a conductive surface, the battery leads may short out. If they do, this
will result in a loss of CMOS data and will drain the battery. Use a conductive foam pad
if available but not the board wrapper. Do not slide the board over any surface.
Caution: For proper cooling and airflow, always install the front cover before turning on
the system. Operating the system for an extended period of time without the top and
front covers in place can damage system parts.
Caution: If the SGI 1450 server is turned on and has only three fans installed, make sure
that you install the top cover within five minutes of removing it.
Follow the instructions in this section to remove and install the front cover.
Removing the Front Cover
To reach components inside the system, remove the front cover, and in some cases the
front bezel. Facing the front of the system, the front cover is on top and towards the front
of the rack-mounted chassis. See Figure 1-1 on page 3 for the location of the front cover.
The following tasks require removal of the front cover:
• Removing and installing non-hot-swap drives in the media bay
007-4276-001 23
2: Removing and Installing System Components
• Removing and installing media devices in the device bay
• Removing and installing the fan board assembly
• Removing and installing the power subsystem bay
• Removing and installing a power supply module (front bezel only)
To remove the front cover, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the front bezel by gently pulling it towards you. The ball studs will release
from the chassis.
3. Remove the three screws located on the top of the chassis. These screws are noted by
“A” in Figure 1-2 on page 4. Save these screws; you need them later to reattach the
cover.
4. Using an even pull and pressing down, slide the cover back towards the front of the
chassis about 0.75 inch.
5. Lift the front cover up and out of the chassis.
Installing the Front Cover
To install the front cover, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Before replacing the front cover, check that no loose tools or parts were left inside
the system.
3. Check that cables and other components are properly installed.
4. Position the cover over the chassis so that the rows of tabs align with slots in the
chassis. Slide the cover toward the back of the system until the tabs on the cover
firmly engage in the chassis.
5. Attach the cover to the chassis with the three screws removed earlier, and tighten
them firmly.
6. Install the bezel by gently applying pressure towards the chassis. The ball studs
snap into the chassis.
24 007-4276-001
Top Cov er
Follow the instructions in this section to remove and install the top cover.
Removing the Top Cover
To reach components inside the system, remove the top cover. Facing the front of the
system, the top cover is on top and towards the back of the rack-mounted chassis. See
Figure 1-1 on page 3 for the location of the top cover. The following tasks require removal
of the top cover:
• Accessing baseboard components including but not limited to non-hot-plug PCI
• Exchanging individual fans
• Removing and installing the fan board assembly
• Removing and installing the power subsystem bay
Top Cover
add-in boards, extension boards, memory slots, Voltage Regulator Modules
(VRMs), and processors
To remove the top cover, perform the following steps.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Release the two thumbscrews located on the top rear of the chassis. One of two
thumbscrews are noted by “A” in Figure 1-3 on page 5.
3. Using an even pull, press lightly on the top cover and slide it back until it stops.
4. Lift the entire cover upward and away from the chassis.
Installing the Top Cover
To install the top cover, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Before replacing the top cover, check that no left loose tools or parts were left inside
the system.
3. Check that cables, add-in boards, and other components are properly installed.
007-4276-001 25
2: Removing and Installing System Components
4. Position the cover over the chassis so that the rows of tabs align with slots in the
chassis. Slide the cover toward the front of the system until the tabs on the cover
firmly engage in the chassis.
5. Attach the cover to the chassis with the two thumbscrews released earlier, and
tighten them firmly.
6. Connect any external cables.
Memory Retention Bar
When accessing baseboard components, you need to remove and install the memory
retention bar.
Removing the Memory Retention Bar
To remove the memory retention bar, follow these steps:
1. Unscrew the captive screw located at the front of the E-Bay. The captive screw is
noted by “A” in Figure 2-1.
2. LiftupthebarfromthesidelocatedatthefrontoftheE-Bay.
3. Release the clip located at the rear of the chassis. The clip is noted by “C” in
Figure 2-1.
26 007-4276-001
Baseboard
A
Figure 2-1 Memory Retention Bar
A. Captive screw
B. Memory retention bar
C. Clip at the rear of the chassis
B
C
Installing the Memory Retention Bar
1. Slip slots in the memory retention bar into the clip located at the rear of the chassis.
The clip is noted by “C” in Figure 2-1.
2. Secure the other side of the memory retention bar with the captive screw, as shown
in Figure 2-1.
Baseboard
This section covers the removal and installation of the baseboard, which requires the
removal and installation of baseboard components. The baseboard resides in the E-Bay.
The front, right, back, and left sides of the E-Bay are marked in Figure 1-4 on page 6.
007-4276-001 27
2: Removing and Installing System Components
Removing the Baseboard
To remove the baseboard, follow these steps:
!
Caution: The baseboard can be extremely sensitive to ESD and always requires careful
handling. After removing it from the system, place it component-side UP on a
non-conductive, static-free surface to prevent shorting out the battery leads. If you place
the board on a conductive surface, the battery leads may short out. This will result in a
loss of CMOS data and will drain the battery. Do not slide the baseboard over any
surface.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off all peripheral devices connected to the system.
3. Turn off the system power by pressing the power on/off button on the front panel,
and unplug all AC power cords.
4. Label and disconnect all peripheral cables attached to the I/O panel on the back of
the system.
5. Remove the front cover. See “Removing the Front Cover” on page 23.
6. Remove the top cover. See “Removing the Top Cover” on page 25.
7. Remove the foam cover that shields the E-Bay.
8. Remove the fan board assembly. See “Removing the Fan Board Assembly” on
page 39.
9. Remove the memory retention bar. See “Removing the Memory Retention Bar” on
page 26.
10. Remove the memory module. See “Removing the Memory Module” on page 55.
11. Disconnect internal cables to the baseboard. Cables and connectors include:
• ThreeribboncablesatthefrontoftheE-Bay
• Three power connectors
• A ribbon cable located next to the non-hot-plug PCI add-in boards at the back of
the E-Bay
• A 13-pin AUX-IMB connector
28 007-4276-001
Baseboard
12. Remove the 33-MHz half-length PCI add-in boards. See “Removing a 32-bit,
33-MHz Half-Length PCI Add-in Board” on page 65.
13. Follow these steps to remove the power supply AC bracket:
a. Release the screw securing the connector. The screw is noted by “A” in
Figure 2-2.
b. Slide the bracket up and towards the inside of the chassis.
c. Drape the AC bracket over the left side of the E-Bay assembly.
A
Figure 2-2 Power Supply AC Bracket
B
A. Screw securing the connector
B. Power supply inlet connector
14. Removethevoltageregulatormodules(VRMs).See“RemovingaVRM”onpage62.
15. Remove the processors and any termination processors. See “Removing a
Processor” on page 59.
16. Remove the processor retention guides. See “Removing Processor Retention
Mechanisms” on page 59.
17. Remove any hot-plug PCI add-in boards. See the SGI 1450 Server User’s Guide.
007-4276-001 29
2: Removing and Installing System Components
18. Remove the plastic slot dividers. First, pull up on the end at the front of the E-Bay,
and then slide the other end out of the back panel at the back of the E-Bay.
19. Removethescrewssecuringthebaseboardtothechassis.Thereshouldbetwoof
them.
20. Remove the four screws on the top and bottom edges of the rear subchassis. These
screws attach the E-Bay to the chassis. Two of the four screws are noted as “A” in
Figure 2-3.
A
Figure 2-3 E-Bay Retaining Screws
21. Pull the E-Bay away from the chassis. As you separate the E-Bay away, make sure
that the power cord does not become wedged between the two parts of the chassis.
22. Remove the rug from the E-Bay.
23. Using needlenose pliers, remove the plastic rear retention mechanism located at the
front of the E-Bay. The rear retention mechanism is noted by “A” in Figure 2-4 on
page 31.
24. Slidethebaseboardtowardsthefrontofthechassis.
25. Lift the baseboard up and out on the side closest to the baseboard and VRM
connectors.
30 007-4276-001
Installing the Baseboard
To install the baseboard, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Pull the E-Bay away from the chassis. As you separate the E-Bay away, make sure
3. Hold the baseboard on the side closest to the VRM connectors and processors. Slip
4. Using needlenose pliers, install the plastic rear retention mechanism located at the
Baseboard
that the power cord does not become wedged between the two parts of the chassis.
the baseboard under the padding on the right side of the E-Bay and then under the
back panel at the rear of the chassis.
front of the E-Bay. The rear retention mechanism is noted by “A” in Figure 2-4.
A
Figure 2-4 Rear Retention Mechanism
5. Place the rug at the bottom of the E-Bay.
6. SlidetheE-Bayintothechassis.AsyouslidetheE-Bayin,makesurethatthepower
cord does not become wedged between the two parts of the chassis.
7. Attach the four screws on the top and bottom edges of the rear subchassis. See
Figure 2-3 on page 30.
007-4276-001 31
2: Removing and Installing System Components
8. Attach the screws securing the baseboard to the chassis. There should be two of
them.
9. Install the plastic slot divider. First, slide one end into the back panel, and then press
the other end into the chassis.
10. Install any hot-plug PCI add-in boards. See the SGI 1450 Server User’s Guide.
11. Install the processor retention guides. See “Installing Processor Retention
Mechanisms” on page 60.
12. Install the processors and any termination processors. See “Installing a Processor”
on page 59.
13. Install the voltage regulator modules (VRMs). See “Installing a VRM” on page 62.
14. Follow these instructions to install the power supply AC bracket. See Figure 2-2 on
page 29.
a. Slide the bracket through the back panel from inside the chassis.
b. Once in place, slide the bracket down into the slot.
c. Attach the screw securing the bracket, as shown in Figure 2-2 on page 29.
15. Add any 33-MHz half-length PCI add-in boards. See “Installing a 32-bit, 33-MHz
Half-Length PCI Add-in Board” on page 66.
16. Connect internal cables to the baseboard. Cables and connectors include:
• ThreeribboncablesatthefrontoftheE-Bay
• Three power connectors
• A ribbon cable located next to the non-hot-plug PCI add-in boards at the back of
the E-Bay
• A 13-pin AUX-IMB connector
17. Install the memory module. See “Installing the Memory Module” on page 55.
18. Install the memory retention bar. See “Installing the Memory Retention Bar” on
page 27.
19. Install the fan board assembly. See “Installing the Fan Board Assembly” on page 40.
20. Place the foam cover over the E-Bay.
21. Installthetopcover.See“InstallingtheTopCover”onpage25.
22. Install the front cover. See “Installing the Front Cover” on page 24.
32 007-4276-001
Power Subsystem
Power Subsystem
23. Connect all peripheral cables to the I/O panel on the back of the system.
Follow the instructions in this section to remove and install a power supply module and
the power subsystem bay.
The SGI 1450 server can accommodate up to three power supply modules, each of which
is enclosed in a power subsystem bay. The power subsystem bay contains a power
distribution board (PDB). This board manages the power delivered by all functional
power supply modules.
Figure 2-5 shows the power subsystem bay with three power supply modules installed.
007-4276-001 33
2: Removing and Installing System Components
A
Figure 2-5 Power Subsystem
B
C
D
E
F
G
A. One of two screws on both sides of the chassis. When removing the power subsystem
bay, remove these screws.
B. Tab
C. Handle for the power supply module
D. Thumbscrew on the power supply module. When removing the power supply
module, loosen this screw.
E. Power supply module LED
F. Thumbscrew on the front of the power subsystem bay. When removing the power
subsystem bay, loosen this screw.
G. Power supply module standby LED indicating that 5 V standby power is operational.
Each module has one Standby LED. This LED corresponds to the power supply
module on the far right.
34 007-4276-001
Power Subsystem
Warning: Hazardous voltage, current, and energy levels are present inside the
power subsystem. There are no user-serviceable parts inside it; servicing should be
done by technically qualified personnel.
!
Caution: Once you remove a power supply, make sure you replace it within two
minutes. If not possible in thistime frame, re-insert the original unit. When a replacement
unit is available, repeat the replacement procedure. Vacant spaces alter airflow patterns
in the server system and may cause environmental conditions to exceed the
environmental limits of the server.
Removing a Power Supply Module
To remove a power supply module, follow these steps:
1. Remove the front bezel by gently pulling on the edge of the front bezel. The ball
studs of the bezel release. Check the LED for each power supply module to
determine which power supply module needs to be replaced.
2. Loosen the power supply module retaining screw. See Figure 2-5 on page 34 for the
location of the screw.
3. Press down on the power supply module tab. Gently pull the power supply module
handle towards you and remove the power supply module from the power
subsystem bay.
!
Caution: You might feel initial resistance in sliding out the power supply from its bay.
Do not tilt or twist the supply; this can damage components. Resistance is caused by the
power supply module disengaging from its connector. Use even, steady force to remove
the supply.
Installing a Power Supply Module
To install a power supply module, follow these steps:
007-4276-001 35
2: Removing and Installing System Components
1. Remove the front bezel by gently pulling on the edge of the front bezel. The ball
studs of the bezel will release.
2. Remove the non-functioning power supply according to the instructions in the
preceding subsection.
3. Line up the new power supply module within the power subsystem bay.
4. Gently push the power supply module into the chassis until the tab snaps into
place. The LED for the new functional power supply module should turn green.
5. Tighten the thumbscrew on the front of the power supply module.
6. Snap on the bezel.
Removing the Power Subsystem Bay
To remove the power subsystem bay, follow these steps:
Warning: The on/off button on the front panel DOES NOT turn off the system AC
power.To remove power from system, unplug the AC power cords from the walloutlet
or the system.
Warning: Hazardous voltage, current, and energy levels are present inside the
power supply. There are no user-serviceable parts inside it; servicing should be done
by technically qualified personnel.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove any DC power cables attached to the hard drive bay or the peripheral bay
devices.
3. Remove the baseboard. See “Removing the Baseboard” on page 28.
4. Loosen the screw on the front of the chassis. This screw is noted by “F” in Figure 2-5
on page 34.
5. Release the two screws on each side of the chassis. One of the screws is noted by
“A”inFigure2-5onpage34.
6. Lift the piece of sheet metal covering the top of the power subsystem bay. The metal
plate is noted by “A” in Figure 2-6 on page 38.
36 007-4276-001
7. Un-route the AC distribution cable from the chassis retention features.
8. With the power supplies securely fastened, pull the power subsystem bay out of the
chassis.
9. Before shipping the power subsystem bay for service, remove all power supplies.
Installing the Power Subsystem Bay
To install the power subsystem bay, follow these steps:
Warning: The on/off button on the front panel DOES NOT turn off the system AC
power.To remove power from system, unplug the AC power cords from the walloutlet
or the system.
Warning: Hazardous voltage, current, and energy levels are present inside the
power supply. There are no user-serviceable parts inside it; servicing should be done
by technically qualified personnel.
Power Subsystem
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the non-functioning power subsystem bay according to the instructions in
the preceding subsection.
3. Place the power subsystem bay in the front of the chassis. The front of the power
subsystem bay should be flush with the front of the system.
4. Tighten the screw on the front of the power subsystem bay. The screws are noted by
“F” in Figure 2-5 on page 34.
5. Route the AC distribution cable into the chassis retention feature.
6. Attach the DC power cables to the hard drive bay and to any peripheral bay
devices.
7. Install the baseboard. See “Installing the Baseboard” on page 31.
8. Place the piece of sheet metal that covers the top of the power subsystem bay so that
the front of the sheet metal is flush with the front of the system. The metal plate is
noted by “A” in Figure 2-6.
007-4276-001 37
2: Removing and Installing System Components
A
Figure 2-6 Metal Plate Covering the Power Subsystem Bay
9. Tightenthetwoscrewsoneachsideofthechassis.Oneofthescrewsforeachsideis
noted by “A” in Figure 2-5 on page 34.
10. Securely fasten the power supply modules in the power subsystem bay. See
“Installing a Power Supply Module” on page 35.
11. Installthetopcover.See“InstallingtheTopCover”onpage25.
12. Install the front cover. See “Installing the Front Cover” on page 24.
Cooling System
Follow the instructions in this section to remove and install the fan board assembly, the
fan board, and each individual fan.
The fan board assembly is held in place by two screws, one on each side of the chassis.
The fan board assembly holds up to six individual fans. The top of each fan has two
finger holds, one on each side of the fan. A connector at the bottom of each fan fits into a
connector in the fan board assembly. Before removing the fan board assembly, make sure
that the replacement assembly is ready.
38 007-4276-001
Removing the Fan Board Assembly
To remove the fan board assembly, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off the system by pressing the power on/off button on the front panel, and
unplug all AC power cords.
3. Remove the front cover. See “Removing the Front Cover” on page 23.
4. Remove the top cover. See “Removing the Top Cover” on page 25.
5. Remove all individual fans from the assembly. See “Removing and Installing
Individual Fans” on page 42.
6. Remove the two screws that secure the board assembly to the chassis. Set the screws
aside. You will need them later in this procedure. One of the screws is noted by “A”
in Figure 2-7.
Cooling System
A
Figure 2-7 Fan Board Assembly Screw
7. Lift the fan board assembly directly upward and rest it on the E-Bay assembly.
8. Disconnect the cables from the assembly. There are three cables, as follows:
007-4276-001 39
2: Removing and Installing System Components
• One ribbon cable that connects to the baseboard.
• One ribbon cable that connects to the front panel.
• One power cable that connects to the power subsystem bay.
Installing the Fan Board Assembly
To install the fan board assembly, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off the system by pressing the power on/off button on the front panel and
unplug all AC power cords.
3. Place the new fan board assembly on top of the E-Bay assembly so that the
connectors face the front of the system.
4. Connect the cables from the front panel, baseboard, and power system to the board
assembly.
5. Slide the assembly into the chassis.
6. Attach the two screws that secure the board assembly to the chassis. See Figure 2-7
on page 39.
7. Install the individual fans. See “Removing and Installing Individual Fans” on
page 42.
8. Install the top cover. See “Installing the Top Cover” on page 25.
9. Install the front cover. See “Installing the Front Cover” on page 24.
ReplacingtheFanBoard
To replace the fan board, follow these steps:
1. Remove the fan board assembly. See “Removing the Fan Board Assembly” on
page 39.
2. Remove the screws securing the base from the upper portion of the fan bay
assembly. Keep them in a safe place. You will need them later in the procedure.
3. Rotate the upper portion of the assembly away from the base. The upper portion is
noted by “A” in Figure 2-8. The base is noted by “B”.
40 007-4276-001
C
A
Figure 2-8 Fan Assembly Rotated away From Its Base
B
A. Upper portion of fan board assembly
Cooling System
B. Fan board assembly base
C. Plastic rug
4. Remove the plastic rug, which is noted by “C” in Figure 2-8.
5. Remove the screws that secure the fan board to the assembly.
6. Install the new fan board and attach the screws.
7. Place the plastic rug back into the assembly. The orientation of the rug is important.
For the correct orientation, see Figure 2-8.
8. Rotate the assembly back towards its base.
9. Attach the screws that secure the base to the rest of the fan assembly.
10. Install the fan board assembly. See “Installing the Fan Board Assembly” on page 40.
007-4276-001 41
2: Removing and Installing System Components
Removing and Installing Individual Fans
To remove and install individual fans, follow these steps:
!
Caution: Onceyouremoveanindividualfan,makesureyoureplaceitwithintwo
minutes. If you cannot replace it, insert the original unit. When you have the replacement
unit, repeat the replacement procedure. Vacant spaces formerly occupied byfans alter air
flow patterns in the server system and may cause environmental conditions to exceed the
environmental limits of the server.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the top cover. See “Removing the Top Cover” on page 25.
3. Place your ring finger and thumb in the fingerholds of the fan in the chassis.
4. Gently pull the fan directly upward and out of the fan board assembly.
5. Slide the replacement fan into the fan board assembly.
6. When you start to feel some resistance, gently push down on the center of the fan
until the connectors solidly join.
7. Install the top cover. See “Installing the Top Cover” on page 25.
Note: After removing an individual fan, the system takes a few seconds to recognize the
absence of the fan. Before replacing the fan, make sure that the LED shows a fault and
recognizes that the slot for the fan is vacant.
Hard Drive Bay
Follow the instructions in this section to remove and install the hard drive bay.
The chassis contains one hard drive bay. The hard drive bay accommodates up to five
3.5-inch by 1.0-inch hot-swap Ultra 160 SCSI SCA hard drives.
42 007-4276-001
Removing the Hard Drive Bay
To remove the hard drive bay, follow these steps;
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the front cover. See “Removing the Front Cover” on page 23.
3. Remove the fan board assembly. See “Removing the Fan Board Assembly” on
page 39.
4. Disconnect the four cables attached to the hard drive bay.
5. Remove the SCSI hard drives. See “Removing a SCSI Hard Drive” in the SGI 1450
Server User’s Guide.
6. With a flat head screwdriver, press the two tabs inward on one side. Repeat this step
for the two tabs on the other side. The two tabs are noted by “A” in Figure 2-9.
Hard Drive Bay
A
Figure 2-9 Hard Drive Bay Tabs
007-4276-001 43
2: Removing and Installing System Components
7. With a flat head screwdriver, pry the right side of the hard drive bay out of the
chassis, as shown in Figure 2-10.
Figure 2-10 Removing the Hard Drive Bay from the Chassis
Installing the Hard Drive Bay
To install the hard drive bay, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Slide the hard drive bay into the chassis until the tabs engage the slots on the
chassis.
3. Connect the four cables to the hard drive bay.
4. Install the SCSI hard drives. See “Installing a SCSI Hard Drive” in the SGI 1450
Server User’s Guide.
5. Install the fan board assembly. See “Installing the Fan Board Assembly” on page 40.
6. Install the top cover. See “Installing the Top Cover” on page 25.
7. Install the front cover. See “Installing the Front Cover” on page 24.
44 007-4276-001
Peripheral Devices
The chassis contains one peripheral bay for CD-ROM, DAT, and floppy drives. The
peripheral bay contains two smaller bays: a device bay and a media bay.
Follow the instructions in this section to replace drives in the media bay and the device
bay.
Removing a Drive from the Media Bay
The media bay holds a 0.5-inch slim-line floppy and a 0.5-inch slim-line CD-ROM drive.
The drives are secured to the media bay by a screw as shown in Figure 2-11. (Although
Figure 2-11 shows a single 3.5-inch floppy disk drive, the SGI 1450 server is shipped with
a 0.5-inch slim-line floppy and a 0.5-inch slim-line CD-ROM drive.)
Peripheral Devices
A
Figure 2-11 Location of the Media Bay Screw
To remove a drive from the media bay, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off the system by using the power on/off button on the front panel and unplug
the AC power cord.
007-4276-001 45
2: Removing and Installing System Components
3. Remove the front cover. See “Removing the Front Cover” on page 23.
4. Disconnect the power and signal cables from the back of the drive.
5. Remove and save the screw that secures the drive to the bay. The screw is noted by
“A” in Figure 2-11.
6. Slide the drive out. If the drive will be used again, place it in an antistatic protective
wrapper.
Installing a Drive in the Media Bay
To install a drive in the media bay, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the drive to be replaced according to the instruction in the preceding
subsection.
3. Slide the new drive in the media bay.
4. Connect the power and signal cables to the drive.
5. Insert and tighten the screw that secures the drive to the bay. The screw is noted by
“A” in Figure 2-11.
6. Install the front cover. See “Installing the Front Cover” on page 24.
Replacing a Drive in the Device Bay
To replace a drive in the device bay, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the front cover. See “Removing the Front Cover” on page 23.
3. Turn off the system by pressing the power on/off button on the front panel, and
unplug the AC power cord.
4. Disconnect the power and signal cables from the drive. The connectors are keyed for
ease in reconnecting them to the drive.
5. Slide the drive out. If the drive will be used again, place it in an antistatic protective
wrapper.
6. Slide the new drive into position using the guides in the device bay.
46 007-4276-001
7. Connect the power and signal cables to the drive.
8. Install the front cover. See “Installing the Front Cover” on page 24.
SCSI Requirements
All SCSI devices must not be terminated except the peripheral at the end of the SCSI
cable.
Note: Integrating the 5.25-inch peripheral bay can affect EMC compliance and is a
regulated activity. Except as noted here, any changes to the bay configuration could
result in noncompliance with EMC regulations.
SCSI Requirements
!
Caution: To avoid damage to a 5.25-inch peripheral device, ensure the EMI gasketing
provided in the device bay does not bridge any open circuits on the exposed peripheral
device.
007-4276-001 47
Chapter 3
3. Removing and Installing Baseboard Components
This chapter provides information on removing and installing the following baseboard
components:
•Memory
•Processors
• Voltage Regulator Modules (VRMs)
• Backup Battery
•Add-inBoards
•ICMBCard
The removal and installation procedures described in this chapter assume that the
baseboard components are readily accessible. For information on removing the top cover
and other items that may stand in the way of baseboard components, see Chapter 2,
“Removing and Installing System Components”.
007-4276-001 49
3: Removing and Installing Baseboard Components
Tools and Supplies Needed
The following tools and supplies allow you to remove and install all the system
components covered in this chapter:
• Phillips (cross-head) screwdriver (#1 and #2 bit).
• Phillips (cross-head) screwdriver with a long blade (#1 and #2 bit).
• Jumper removal tool or needle-nosed pliers.
• Antistatic wrist strap and conductive foam pad (recommended).
• Pen or pencil.
• Equipment log. As you integrate new parts into the system, add information about
them to your equipment log (see page 84). Record the model and serial number of
the system, all installed options, and any other pertinent information specific to the
system. You will need this information when running the SSU.
Pre-Installation Safety Precautions
The following warnings and cautions apply whenever you work with the baseboard.
Only a technically qualified person should integrate and configure the system.
Warning: The on/off button (a convex button) on the front panel does not turn off
the system AC power. To remove power from system, you must unplug the AC power
cords from the wall outlet or the system.
Warning: Hazardous electrical conditions may be present on power, telephone, and
communication cables. Turn off the system and disconnect the power cords,
telecommunications systems, networks, and modems attached to the system before
opening it. Otherwise, personal injury or equipment damage can result.
50 007-4276-001
Pre-Installation Safety Precautions
Caution: ESD can damage disk drives, boards, and other parts. We recommend that you
!
do all procedures in this chapter only at an ESD-protected workstation. If one is not
available, provide some ESD protection by wearing an antistatic wrist strap attached to
chassis ground—any unpainted metal surface—on your system when handling parts.
!
!
!
Caution: Always handle boards carefully. They can be extremely sensitive to ESD. Hold
boards only by their edges. After removing a board from its protective wrapper or from
the system, place it component-side UP on a grounded, static-free surface. If you place
the baseboard on a conductive surface, the battery leads may short out. If they do, this
will result in a loss of CMOS data and will drain the battery. Use a conductive foam pad
if available but not the board wrapper. Do not slide the board over any surface.
Caution: For proper cooling and airflow, always install the chassis access covers before
turning on the system. Operating the system without this cover in place can damage
system parts.
Caution: A jumper is a small, plastic-encased conductor that slips over two jumper pins.
Newer jumpers have a small tab on top that you can grip with your fingertips or with a
pair of fine, needle-nosed pliers. If your jumpers do not have such a tab, take care when
using needle-nosed pliers to remove or install a jumper; grip the narrow sides of the
jumper with the pliers. Never grip the wide sides of the jumpers. This can damage the
contacts inside the jumper, causing intermittent problems with the function controlled by
that jumper. Take care to gently grip, but not squeeze, with the pliers or other tool you
use to remove a jumper; otherwise you might bend or break the stake pins on the board.
007-4276-001 51
3: Removing and Installing Baseboard Components
Baseboard Connector and Component Locations
Figure 3-1 shows a detailed view of the baseboard connectors and components.
A
B
Z
Y
X
W
V
U
T
AA
S
BB
R
CC
Q
DD
C
D
E
F
H
FFEE
GG
JJ
I I
J
HH
G
K
L
M
O
N
P
I
Figure 3-1 Baseboard Connector and Component Locations
A. Legacy Narrow SCSI
B. Legacy Wide SCSI
C. SMM Connector
D. IMB Connector
E. HDD Activity
F. H PIB C on ne ctor
G. ICMB Connector
H. Connector not Used
I. Lithium Battery
J. Memory Module Connector
K. Video Connector
L. USB, External Connector
M. Network Connector
N. Parallel Connector
52 007-4276-001
O. COM1, COM2 Connector
P. Keyboard/Mouse
Q. Main Power 1
R. Auxiliary Power
S. Main Power 2
T. S MBus
U. Front Panel
V. I D E C o n n e c t o r
W. Floppy Connector
X. Configuration Jumpers
Y. Ultra 160 SCSI A
Z. Ultra 160 SCSI B
AA. Processor #1
BB. Processor #2
CC. Processor #3
DD. Processor #4
EE. Voltage Regulator Module (VRM) Connector #2
FF. Voltage Regulator Module (VRM) Connector #3
GG.VoltageRegulatorModule(VRM)Connector#4
HH. 32-bit, 33-MHz Half-length PCI Slots
II. 64-bit, 66/33-MHz Hot-Plug PCI Slots
JJ. 64-bit, 33-MHz Hot-Plug PCI Slots
Memory
Memory
Follow the instructions in this section to remove and install the memory module and
DIMMs.
Main memory resides on an add-in board, called a memory module. The memory
module contains slots for 16 DIMMs, each of which must be at least 64 MB, and is
attached to the baseboard through a 330-pin connector, called the memory expansion
card connector (MECC). The memory module supports PC-100 compliant registered
ECC SDRAM memory modules. The ECC used for the memory module is capable of
correcting single-bit errors (SBEs), detecting 100 percent of double-bit errors over one
code word, and detecting nibble errors.
System memory begins at address 0 and is continuous (flat addressing) up to the
maximum amount of DRAM installed (exception: system memory is non contiguous in
007-4276-001 53
3: Removing and Installing Baseboard Components
the ranges defined as memory holes using configuration registers). The system supports
both base (conventional) and extended memory.
• Base memory is located at addresses 00000h to 9FFFFh (the first 1 MB).
• Extended memory begins at address 0100000h (1 MB) and extends to 3FFFFFFFFh
(16 GB), which is the limit of supported addressable memory. The top of physical
memory is a maximum of 16 GB (to 3FFFFFFFFh).
DIMM memory sizes from 256 MB to 16 GB are supported, with a 64/72-bit
four-way-interleaved pathway to main memory, which is also located on the module.
Therefore, data transfers between MADPs and DIMMs are in four-way interleave
fashion. Each of the four DIMMs must be populated in a bank. The 16 slots are divided
into four banks of four slots each. They are labeled A through D.
Bank A contains DIMM sockets A1, A2, A3, and A4. Banks B, C, and D each contain 4
DIMMsocketsandarenamedinthesamefashion.Therearesilkscreensonthemodule
next to each DIMM socket to label its bank number. For the best thermal results, populate
the banks from A to D. For example, populate bank A and then bank B. For best
performance results, populate adjacent banks. For example, populate bank A and then
bank C.
Figure 3-2 shows a detailed view of the memory module slots.
A3
C3
B3
D3
A1
C1
B1
D1
XY
Figure 3-2 Memory Module DIMM Installation Sequence
54 007-4276-001
Z
A4
C4
B4
D4
A2
C2
B2
D2
X. One of sixteen DIMM sockets
Y. One of four memory address data paths (MADP)
Z. Memory expansion card connector (MECC)
Removing the Memory Module
The memory module is located on the baseboard as shown in Figure 3-1 on page 52. The
DIMM locations are shown in Figure 3-2.
To remove the memory module, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Pullthemoduleupwardslightlytodisengageitfromthebaseboardconnector.
3. Slide the module straight up and away from the baseboard until it clears the guide
rails.
4. Place the module component-side up on a nonconductive, static-free surface.
Memory
Installing the Memory Module
To install the memory module, follow these steps:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Holding the memory module by its edges, align the module so its edge engages the
guide rails at the back and front of the electronics bay.
!
007-4276-001 55
Caution: The memory module is held in place by the 330-pin connector on the
baseboard, the guide rails in the center of the electronics bay. You must support the
module until it is fully seated in the connector.
3. Push the memory module toward the baseboard until it fully engages the connector
on the baseboard.
3: Removing and Installing Baseboard Components
Removing DIMMs
To remove DIMMs, follow these steps;
Installing DIMMs
!
!
Caution: Use extreme care when removing a DIMM. Too much pressure can damage the
socket slot. Apply only enough pressure on the plastic ejector levers to release the DIMM.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the memory module and place it component-side up on a nonconductive,
static-free surface. See “Removing the Memory Module” on page 55.
3. Gently push the plastic ejector levers down to eject the DIMM from its socket.
4. Hold the DIMM only by its edges, being careful not to touch its components or gold
edge connectors. Carefully lift it away from the socket and store it in an antistatic
package.
5. Repeat to remove other DIMMs as necessary.
To install DIMMs, follow these steps:
Caution: Use extreme care when installing a DIMM. Applying too much pressure can
damage the socket. DIMMs are keyed and can be inserted in only one way.
!
56 007-4276-001
Caution: Mixing dissimilar metals might cause memory failures later, resulting in data
corruption. Install DIMMs with gold-plated edge connectors only in gold-plated sockets.
1. Holding the DIMM only by its edges, remove it from its antistatic package.
2. Orient the DIMM so that the two notches in the bottom edge of the DIMM align
with the keyed socket on the memory module. See Figure 3-3.
Processors
Figure 3-3 DIMM Orientation in a Memory Module
Note: DIMM slots on the memory module must be installed only in certain
configurations. See the beginning of this section for requirements.
3. Insert the bottom edge of the DIMM into the socket, and then press down firmly on
the DIMM until it seats correctly.
4. Gently push the plastic ejector levers on the socket ends to the upright position.
5. Repeat the steps to install each DIMM.
Processors
Follow the instructions in this section to remove and install a processor, the processor
retention mechanisms, and processor heatsinks.
!
007-4276-001 57
Caution: You might damage the system if you install a processor that is inappropriate
for your system. Make sure your system can handle the thermal and power conditions of
the newer, faster processor. For exact information about processor interchangeability,
contact your customer service representative.
3: Removing and Installing Baseboard Components
Caution: Reduce the risk of electrostatic discharge (ESD) damage to the processor by
!
doing the following: (1) Touch the metal chassis before touching the processor or
baseboard. Keep part of your body in contact with the metal chassis to dissipate the static
charge while handling the processor. (2) Avoid moving around unnecessarily.
A processor has the following components:
G
J
L
K
D
C
B
A
E
F
I
H
Figure 3-4 Processor Orientation and Components
A. Processor 1
B. Processor 2
C. Processor 3
D. Processor 4
E. Screws (2) at the top of the processor
F. Clip on processor handle
G. Processor handle
H. Termination module
I. Processor heat sink
J. Processor retention mechanism
K. Screws (2) for retention module guide rails
L. Note the handle/screw orientation for each processor pair
58 007-4276-001
Installing a Processor
Processors
Removing a Processor
See Figure 3-4 for the location of processor components.
1. Observe the safety and ESD precautions at the beginning of this chapter and the
additional cautions given in this section.
2. Remove the two screws that secure the handle to the processor.
3. Pull firmly and straight up on either side of the processor handle.
4. Put the processor on a piece of conductive foam and store it in an antistatic package.
See Figure 3-4 for the location of processor components.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the new processor from its antistatic package and place it on a grounded,
static-free surface or conductive foam pad.
3. Attach the processor handle to the processor. For more information, see “Installing
Processor Handles” on page 60.
4. If necessary, attach the heatsink to the processor. For more information, see
“Installing Processor Heatsinks” on page 60.
5. Orient the processor correctly in the chassis. See Figure 3-4 on page 58 and
Figure 3-1 on page 52.
6. Slide the processor into the guides on each side of the processor slot and press the
processor downward firmly into the baseboard connector.
7. Insert and tighten two screws at the top of the processor handle.
Removing Processor Retention Mechanisms
See Figure 3-4 for the location of processor components.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Make sure that the processor has been removed from the baseboard. To remove the
processor, see “Removing a Processor” on page 59.
007-4276-001 59
3: Removing and Installing Baseboard Components
3. With a long bladed screwdriver, remove the two screws at the base of the processor
retention mechanism.
4. Remove the retention mechanism from the baseboard.
Installing Processor Retention Mechanisms
See Figure 3-4 for the location of processor components.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Withalongbladedscrewdriver,tightenthetwoscrewsatthebaseoftheprocessor
retention mechanism.
Installing Processor Handles
Depending on your configuration, the handles for the processor might not be attached to
the processor. In this case, you must attach a handle to each processor.
1. OrientthehandleasshowninFigure3-4onpage58.
2. Press the handle into the processor until the handle snaps into place.
Installing Processor Heatsinks
Depending on your configuration, the heatsink for each processor might not be attached.
In this case, you must attach one heatsink to each processor. If you are working with a
processor terminator module, you do not install a heatsink.
See Figure 3-4 for the location of processor components.
1. Remove the heatsink from its protective cover.
2. Pull the tab on the bottom of the heatsink to remove the blue plastic film and expose
the square of adhesive thermal grease that will help attach the heatsink to the
processor.
3. Orient the heatsink on the correct side of the processor. For correct orientation, see
Figure 3-4.
4. Because of the adhesive grease on the heatsink, be careful to orient the heatsink
properly before placing it against the processor.
60 007-4276-001
5. Attach the heatsink to the processor with five 6-32 X 3/8 screws, and tighten to 8-10
inch-pounds.
Voltage Regulator Modules (VRMs)
Follow the instructions in this section to remove and install a VRM.
Up to seven VRMs provide power for processors. Table 3-1 shows the relationship
between VRMs and processors.
Tab le 3 -1 VRM/Processor Power Sequencing
VRM # VRM provides power for Description
1 (Embedded) Processor #1 Processor core power only
2 (Embedded) Processor #1 GLT (FSB reference)
3 (Embedded) Processor #1 and #2 L2 cache power only
4 (Embedded) Processor #3 and #4 L2 cache power only
Voltage Regulator Modules (VRMs)
#2 Connector Processor #2 Processor core power only
#3 Connector Processor #3 Processor core power only
#4 Connector Processor #4 Processor core power only
VRMs 1 through 4 are embedded in the baseboard. Additional VRMs plug into
connectors 2 though 4 on the baseboard. You must use a specific number and connector
population sequence of VRMs for each combination of processors and termination
boards. Table 3-2 lists the required number and location of VRMs for each potential
processor.
Tab le 3 -2 Processor/VRM Population Sequencing
If you have a processor in connector VRM in connector #
1 None. All required VRMs are embedded in the baseboard.
1and2 2
007-4276-001 61
3: Removing and Installing Baseboard Components
Tab le 3 -2 Processor/VRM Population Sequencing
If you have a processor in connector VRM in connector #
1, 2, and 3 3
1, 2, 3, and 4 4
Removing a VRM
To decide which VRM you need to remove, see Figure 3-1 on page 52.
Installing a VRM
!
!
Caution: You might damage the system if you install a VRM that is inappropriate for
your system. For exact information about VRM and processor interchangeability, contact
your customer service representative.
Caution: Reduce the risk of electrostatic discharge (ESD) damage to the VRM by doing
the following: (1) Touch the metal chassis before touching the VRM or baseboard. Keep
part of your body in contact with the metal chassis to dissipate the static charge while
handling the VRM. (2) Avoid moving around unnecessarily.
1. Using a small flat-head screwdriver, push the plastic ejector levers on each end of
the connector away from the VRM to eject it out of the connector. See Figure 3-5 for
the location of the ejector levers.
2. Pull the VRM straight up and out of the baseboard.
3. Place the VRM on a nonconductive, static-free surface, or store it in an antistatic
protective wrapper.
To decide on which connector you need to install a VRM, see Figure 3-1 on page 52.
1. Remove the VRM from its protective package.
2. Orient the VRM in the VRM connector correctly. See Figure 3-5.
62 007-4276-001
Backup Battery
3. CarefullyinserttheVRMintheconnectoronthebaseboard.Makesureyoudonot
bend the connector pins.
4. Push down firmly on both ends of the VRM until the ejector levers of the connector
snap into place, locking the VRM in the connector.
5. Make sure that the ejector levers are firmly in place. If not, use a screwdriver to push
them into place.
A
C
B
Figure 3-5 Installing a VRM
A. VRM
B. VRM connector on baseboard
C. Ejector lever
Backup Battery
Follow the instructions in this section to replace the lithium battery.
The lithium battery on the baseboard powers the real-time clock (RTC) for three to four
years in the absence of power. When the battery weakens, it loses voltage and the system
settings stored in CMOS RAM in the RTC (for example., the date and time) may be
wrong. Contact your customer service representative or dealer for a list of approved
devices.
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3: Removing and Installing Baseboard Components
Warning: If the system has been running, any installed PCI add-in board on the
baseboard will be hot. To avoid the possibility of a burn, be careful when removing or
installing baseboard components, especially those that are located near processors.
The following warning and translations are required by specific certifying agencies to be
printed immediately adjacent to the procedure for removing the RTC.
Warning: There is a danger of explosion if the battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the equipment
manufacturer. Discard used batteries according to manufacturer's instructions.
Advarsel!: Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning
må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til
leverandøren.
Advarsel: Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes kun batteri
som anbefalt av apparatfabrikanten. Brukt batteri returneres apparatleverandøren.
Va r n i ng : Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller
en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri
enligt fabrikantens instruktion.
Varoitus: Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo
ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo
valmistajan ohjeiden mukaisesti.
Note the location of the lithium battery in Figure 3-1 on page 52.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the VRMs in VRM connectors 3 and 4. For more information, see
“Removing a VRM” on page 62.
64 007-4276-001
Add-in Boards
Add-in Boards
3. Insert the tip of a small flat-head screwdriver or equivalent under the plastic tab on
the snap-on plastic retainer.
4. Gently push down on the screwdriver to lift the battery.
5. Remove the battery from its socket.
6. Dispose of the battery according to local ordinance.
7. Remove the new lithium battery from its package and, being careful to observe the
correct polarity, insert it in the battery socket.
Follow the instructions in this section to remove and install add-in boards.
Figure 3-1 on page 52 identifies the add-in board locations. The baseboard contains the
following eight PCI slots:
• Two 32-bit, 33-MHz half-length PCI slots
• Two 64-bit, 66/33-MHz hot-plug PCI slots
• Four 64-bit, 33-MHz hot-plug PCI slots
Typically,the hot-plug PCI add-in boards are held in the hot-plug slotsby a front and rear
hot-plug retention mechanism. See Figure 3-6 on page 68.
Note: At this time, the Linux operating system does not support use of the PCI hot-plug
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP-compatible in
order to use the PHP feature.
Removing a 32-bit, 33-MHz Half-Length PCI Add-in Board
The add-in boards for the half-length 33-MHz PCI slots are not hot-pluggable. In other
words, you must turn off the AC power to the system first before installing boards at
these locations.
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3: Removing and Installing Baseboard Components
Warning: If the system has been running, any installed PCI add-in board on the
baseboard will be hot. To avoid the possibility of a burn, be careful when removing or
installing baseboard components, especially those that are located near processors.
Warning: The on/off button on the front panel does not turn off the system AC
power. To remove power from system, you must unplug the AC power cords from the
wall outlet or the system.
!
Caution: Slot covers must be installed on all vacant expansion slots. This maintains the
electromagnetic emissions characteristics of the system and ensures proper cooling of
system components.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Disconnect any cables attached to the PCI board you are removing.
3. Remove and save the screw that attaches the existing board retaining bracket to the
chassis.
4. Holding the board by its top edge or upper corners, carefully pull it out. Do not
scrape the board against other components.
5. Store the board in an antistatic protective wrapper.
6. If you are not reinstalling a board in the same slot, install a slot cover over the
vacant slot. The tapered foot of the cover must fit into the mating slot in the
expansion slot frame.
Installing a 32-bit, 33-MHz Half-Length PCI Add-in Board
To install a 32-bit, 33-MHz half-length PCI add-in board, follow these steps:
Warning: If the system has been running, any installed PCI add-in board on the
baseboard will be hot. To avoid the possibility of a burn, be careful when removing or
installing baseboard components, especially those that are located near processors.
66 007-4276-001
Add-in Boards
Warning: The on/off button on the front panel does not turn off the system AC
power. To remove power from the system, you must unplug the AC power cords from
the wall outlet or the system.
!
!
Caution: Do not overload the baseboard by installing add-in boards that draw excessive
current.
Caution: Add-in boards can be extremely sensitive to ESD and always require careful
handling. After removing the board from its protective wrapper or from the baseboard,
placeitcomponent-sideuponagrounded,static-freesurfaceorconductivefoampad,if
available. Do not slide the board over any surface.
1. Remove the add-in board from its protective wrapper. Be careful not to touch the
components or gold edge connectors. Place the board component-side up on an
antistatic surface.
2. Record the serial number of the add-in board in your equipment log. See
“Equipment Log” on page 84.
3. Set jumpers or switches on the PCI board according to the manufacturer's
instructions.
4. Remove and save the screw that attaches the existing board or expansion slot cover
to the chassis.
5. Remove and save the expansion slot cover.
6. Hold the add-in board by its top edge or upper corners. Firmly press it into an
expansion slot on the baseboard. The tapered foot of the board-retaining bracket
must fit into the mating slot in the expansion slot frame. Install a PCI board
component-side down.
7. Use the screw removed earlier to fasten the new board-retaining bracket to the
chassis. Tighten the screw firmly (6.0 inch-pounds). Attach cables if necessary.
Removing a 64-bit, 66/33-MHz Hot-Plug PCI Add-in Board
See Figure 3-6 for an illustration of the front hot-plug retention mechanism.
007-4276-001 67
3: Removing and Installing Baseboard Components
Warning: If the system has been running, any installed PCI add-in board on the
baseboard will be hot. To avoid the possibility of a burn, be careful when removing or
installing baseboard components, especially those that are located near processors.
!
Caution: Slot covers must be installed on all vacant expansion slots. This maintains the
electromagnetic emissions characteristics of the system and ensures proper cooling of
system components.
Note: At this time, the Linux operating system does not support use of the PCI hot-plug
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP-compatible in
order to use the PHP feature.
A
B
C
D
Figure 3-6 Front Hot-Plug Retention Mechanism
A. Green and amber LEDs
B. Press here on the inside of the chassis and then rotate to release the PCI board
C.PHPretentionmechanismfromtheoutsideofthechassis
D. HW push-button
68 007-4276-001
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Make sure that the slot is powered off. If the slot is powered on, turn the power to
the slot off through the PCI hot-plug application on your system, or by pressing the
HW push-button.
3. Disconnect any cables attached to the board you are removing.
4. If there is a front and rear hot-plug retention mechanism, release it.
5. Remove the PCI board by pulling straight up.
6. Store board in an antistatic protective wrapper.
7. If you are not reinstalling a board in the same slot, install a slot cover over the
vacant slot. The tapered foot of the cover must fit into the mating slot in the
expansion slot frame.
Installing a 64-bit, 66/33-MHz Hot-Plug PCI Add-in Board
To install a 64-bit, 33/66-MHz hot-plug PCI add-in board, follow these steps:
Add-in Boards
Warning: If the system has been running, any installed PCI add-in board on the
baseboard will be hot. To avoid the possibility of a burn, be careful when removing or
installing baseboard components, especially those that are located near processors.
!
!
007-4276-001 69
Caution: Do not overload the baseboard by installing add-in boards that draw excessive
current.
Caution: Add-in boards can be extremely sensitive to ESD and always require careful
handling. After removing the board from its protective wrapper or from the baseboard,
placeitcomponent-sideuponagrounded,static-freesurfaceorconductivefoampad,if
available. Do not slide the board over any surface.
3: Removing and Installing Baseboard Components
Note: At this time, the Linux operating system does not support use of the PCI hot-plug
!
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP-compatible in
order to use the PHP feature.
1. Remove the add-in board from its protective wrapper. Be careful not to touch the
components or gold edge connectors. Place the board component-side up on an
antistatic surface.
2. Record the serial number of the add-in board in your equipment log. See
“Equipment Log” on page 84.
3. Make sure that the slot is powered off. Power off the add-in board through the PCI
hot-plug application on your system, or by pressing the HW push-button.
4. Set jumpers or switches on the board according to the manufacturer's instructions.
5. If necessary, remove and save the expansion slot cover.
6. Hold the add-in board by its top edge or upper corners. Firmly press it into an
expansion slot on the baseboard. The tapered foot of the board-retaining bracket
must fit into the mating slot in the expansion slot frame. Install a PCI board
component-side down.
7. If there is a front and rear hot-plug retention mechanism, engage it.
8. Use the screw removed earlier to fasten the new board to the chassis. Tighten the
screw firmly (6.0 inch-pounds).
9. Attach cables if necessary.
10. Power on the add-in board through the PCI hot-plug application on your system, or
by pressing the HW push-button.
ICMB Card
Follow the instructions in this section to remove and install a ICMB card.
The ICMB card allows two servers to communicate through a serial connection. An
ICMB card is installed in each server; the cards are connected through a serial cable.
70 007-4276-001
ICMB Card
Establishing communication between servers using the ICMB card is a two-step process.
First, install the ICMB card in each server. Then, make sure that the software required for
thecardisinplace.SoftwarefortheICMBcardincludesfirmwareonthecardand
software already included in the ISC software. ISC software is included in the server
software kit accompanying the baseboard.
Figure 3-7 shows an ICMB card. A filler panel is attached to the ICMB card with two
screws. The panel, noted by “B”, is identical to any filler panel for a PCI add-in board.
You attach the filler panel to the rear of a chassis in the same way that you would attach
a PCI add-in board.
C
A
B
Figure 3-7 ICMB Card
Installing an ICMB Card
To install an ICMB card, follow these steps:
1. Remove the ICMB card and internal cable from their protective wrapper.
2. Designate a PCI slot for the ICMB card. The card does not plug into the connector on
thebaseboard,butthecarddoesusetheopeningattherearofthechassis.
3. Secure the filler panel to the chassis. On most systems, you use one screw. The screw
is noted by “A” in Figure 3-8.
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3: Removing and Installing Baseboard Components
Figure 3-8 Example of an ICMB Card Attached to a Chassis
4. Attach the internal cable to the internal connector on the ICMB card. The internal
cable connection to the card is noted by “A” in Figure 3-9.
A
A
Figure 3-9 Internal Cable Attached to the ICMB Card
5. Connect the other end of the cable to the ICMB connector on the baseboard. The
location of the connector is shown in Figure 3-1 on page 52.
6. The ICMB kit contains an external cable. The cable attaches to the card's external
connector. The external cable connection to the card is noted by “A” in Figure 3-10.
72 007-4276-001
Figure 3-10 External Cable Attached to the Card
Removing an ICMB Card
ICMB Card
A
To remove an ICMB card, follow these steps:
1. Disconnect the internal and external cables from the card and the baseboard.
2. Remove the screw securing the card to the chassis. The screw is noted by “A” in
Figure 3-8 on page 72.
3. RemovetheICMBcardfromtheserver.
007-4276-001 73
Chapter 4
4. Solving Problems
This chapter helps you identify and solve problems that might occur while you are using
the system.
Resetting the System
Table 4-1 shows the commands used to reset the system.
Tab le 4 -1 Resetting Commands
To do this: Press:
Clear system memory, restart POST, and reload the operating
system.
Cold boot reset, which clears system memory, restarts POST,
reloads the operating system, and stops power to allperipherals.
Reset button or <Ctrl+Alt+Del>
Power off/on
Initial System Startup
Problems that occur at initial system startup are usually caused by incorrect installation
or configuration. Hardware failure is a less frequent cause. Use the following check list
to troubleshoot Startup problems:
• Are all cables correctly connected and secured?
• Are the processors fully seated in their slots on the baseboard?
• Are all PCI add-in boards fully seated in their slots on the baseboard?
• Are all switch and jumper settings on the baseboard correct?
• Are all jumper and switch settings on add-in boards and peripheral devices correct?
To check these settings, see the manufacturer's documentation. If applicable, ensure
007-4276-001 75
4: Solving Problems
that there are no conflicts (for example, two add-in boards sharing the same
interrupt).
• Are all DIMMs installed correctly?
• Are all peripheral devices installed correctly?
• If the system has a hard drive, is it properly formatted or configured?
• Are all device drivers properly installed?
• Are the configuration settings made with the SSU correct?
• Is the operating system properly loaded? See the operating system documentation.
• Did you press the system power on/off button on the front panel to turn the server
on (the power-on light should be lit)?
• Are the system power cords properly connected to the system and plugged into a
NEMA 6-15R outlet for 100-120 V~ or for 200-240 V~?
• Is AC power available at the wall outlet?
• If these items are correct but the problem recurs, see “Specific Problems and
Corrective Actions” on page 77.
New Application Software
Problems that occur when you run new application software are usually related to the
software. Faulty equipment is much less likely, especially if other software runs correctly.
Use the following checklist to troubleshoot application software problems;
• Does the system meet the minimum hardware requirements for the software? See
the software documentation.
• Is the software an authorized copy? If not, get one. Unauthorized copies often do
not work.
• If you are running the software from a diskette, is it a good copy?
• If you are running the software from a CD-ROM disk, is the disk scratched or dirty?
• Ifyouarerunningthesoftwarefromaharddrive,isthesoftwarecorrectly
installed? Were all necessary procedures followed and files installed?
• Are the correct device drivers installed?
• Is the software correctly configured for the system?
76 007-4276-001
• If the problems persist, contact the software vendor's customer service
representative.
After the System Has Been Running Correctly
Problems that occur after the system hardware and software have been running correctly
often indicate equipment failure. Often the simple solutions for these problems, however,
can cause additional problems. Sometimes problems stem from changes made to the
system, such as hardware or software that hasbeen added or removed. Use the following
checklist to trouble shoot such problems:
• Ifyouarerunningthesoftwarefromadiskette,tryanewcopyofthesoftware.
• IfyouarerunningthesoftwarefromaCD-ROMdisk,tryadifferentdisktoseeif
the problem occurs on all disks.
• If you are running the software from a hard drive, try running it from a diskette. If
the software runs correctly, there may be a problem with the copy on the hard drive.
Reinstall the software on the hard disk, and try running it again. Make sure all
necessary files are installed.
After the System Has Been Running Correctly
• If the problems are intermittent, there may be a loose cable, dirt in the keyboard (if
keyboard input is incorrect), a marginal power supply, or other random component
failures.
• If you suspect that a transient voltage spike, power outage, or brownout might have
occurred, reload the software and try running it again.
Note: Symptoms of voltage spikes include random errors in data files, a flickering video
display, unexpected system reboots, and lack of response to user command. If you are
experiencing any of these symptoms, you may want to install a surge suppressor
between the power outlet and the system power cords.
Specific Problems and Corrective Actions
This section provides possible solutions for the following problems:
• Power light does not light.
007-4276-001 77
4: Solving Problems
• No beep codes.
• No characters appear on screen.
• Characters on the screen appear distorted or incorrect.
• System cooling fans do not rotate properly.
• Diskette drive activity light does not light.
• Hard drive activity light does not light.
• CD-ROM drive activity light does not light.
• Problems with application software.
Try the solutions in the order given. If you cannot correct the problem, contact your
service representative or authorized dealer.
Power Light Does Not Light
Check the following:
• Are all the power supplies plugged in? Is the power turned on to the power strip or
outlet? Do you have a blown fuse or breaker?
• Is the system functioning normally? If so, the power LED may be defective, the
cable from the front panel to the fan board may be loose, or the cable from the fan
board to the baseboard may be loose.
Ifallitemsarecorrectandproblemspersist,contactyourservicerepresentativeor
authorized dealer.
No Beep Codes
If the system operates normally, but there was no beep, the speaker may be defective. If
the speaker is enabled, but the speaker does not function, contact your service
representative or authorized dealer.
RecordthebeepcodeemittedbyPOST,andsee“ErrorandInformationalMessages”on
page 82.
78 007-4276-001
No Characters Appear on Screen
Check the following:
• Is the keyboard working? Check to see that the “Num Lock” light is functioning.
• Is the video monitor plugged in and turned on? Many modern video monitors shut
down when inactive and may require a moment to warm up when activated.
• Are the brightness and contrast controls on the video monitor properly adjusted?
• Are the video monitor switch settings correct?
• Is the video monitor signal cable properly installed?
• Is the onboard video controller enabled?
If you are using an add-in video controller board, follow these steps:
1. Verify that the video controller board is fully seated in the baseboard connector.
Also verify that the video monitor is plugged in to the active video controller.
2. Reboot the system so that changes take effect.
3. If there are still no characters on the screen after you reboot the system and POST
emits a beep code, write down the beep code. This information is useful for your
service representative. See “Error and Informational Messages” on page 82.
Specific Problems and Corrective Actions
4. If you do not receive a beep code and characters do not appear, the video display
monitor or video controller may have failed. You can verify this by trying the
monitor on another system or trying a different monitor on this system. Contact
your service representative or authorized dealer.
Characters Are Distorted or Incorrect
Check the following:
• Are the brightness and contrast controls properly adjusted on the video monitor?
See the manufacturer's documentation.
• Are the video monitor signal and power cables properly installed?
• Is the correct monitor/video board installed for your operating system?
Iftheproblempersists,thevideomonitormaybefaultyoritmaybetheincorrecttype.
Contact your service representative or authorized dealer.
007-4276-001 79
4: Solving Problems
System Cooling Fans Do Not Rotate Properly
If the system cooling fans are not operating properly, system components could be
damaged.
Check the following:
• Is AC power available at the wall outlet?
• Are the system power cords properly connected to the system and the wall outlet?
• Did you press the power on/off switch?
• Is the power-on light lit?
• Did any of the fan motors stop. (Use the server management subsystem to check the
fan status.)
• Is the cable from the fan board connected to the baseboard?
• Are the power supply cables properly connected to the baseboard and the fan board
assembly?
• Are there any shorted wires caused by pinched cables or power connector plugs
forced into power connector sockets the wrong way?
If the switches and connections are correctly installed and AC power is available at the
wall outlet, contact your service representative or authorized dealer.
Diskette Drive Activity Light Does Not Light
Check the following:
• Are the diskette drive power and signal cables properly installed?
• Are all relevant switches and jumpers on the diskette drive set correctly?
• Is the diskette drive properly configured?
• Is the diskette drive activity light always on? If so, the signal cable may be plugged
in incorrectly.
If you are using the onboard diskette controller, use the SSU to make sure that “Onboard
Floppy” is set to Enabled. If you are using an add-in diskette controller, make sure that
“Onboard Floppy” is set to Disabled. To run the SSU, see “Using the System Setup
Utility” in the SGI 1450 Server User’s Guide.
80 007-4276-001
Iftheproblempersists,theremaybeaproblemwiththediskettedrive,baseboard,or
drive signal cable. Contact your service representative or authorized dealer.
Hard Drive Activity Light Does Not Light
If you installed one or more hard drives in your system, check the following:
• Are the power and signal cables to the drive properly installed?
• Are all relevant switches and jumpers on the hard drive and adapter board set
correctly?
• Is the hard drive properly configured?
CD-ROM Drive Activity Light Does Not Light
Check the following:
• Are the power and signal cables to the CD-ROM drive properly installed?
• Are all relevant switches and jumpers on the drive set correctly?
Specific Problems and Corrective Actions
• Is the drive properly configured?
• Is the onboard IDE controller enabled?
Note: The hard drive activity light on the front panel lights when a SCSI device
controlled by the onboard SCSI host controller is in use. This LED does not display
CD-ROM activity.
Problems with Application Software
Check the following:
• Verify that the software is properly configured for the system. See the software
installation and operation documentation for instructions on setting up and using
the software.
• Try a different copy of the software.
• Make sure all cables are installed correctly.
007-4276-001 81
4: Solving Problems
• Verify that the baseboard jumpers are set correctly. See “Changing Jumper Settings”
on page 133.
• If other software runs correctly on the system, contact your vendor about the failing
software.
If the problem persists, contact the software vendor's customer service representative.
Error and Informational Messages
When you turn on the system, POST displays messages that provide information about
the system. If a failure occurs, POST emits beep codes that indicate errors in hardware,
software, or firmware. If POST can display a message on the video display screen, it
causes the speaker to beep twice as the message appears.
Table 4-2 shows the standard BIOS Port-80 codes.
Tab le 4 -2 Standard BIOS Port-80 Codes
CP Beeps Reason
xx 1-1-1-1 There are no processors present in the system, or the processors are so
incompatible (for example, mismatched cache voltages) that the system BIOS
cannot be run
16 1-2-2-3 BIOS ROM checksum
20 1-3-1-1 Test DRAM refresh
22 1-3-1-3 Test 8742 keyboard controller
28 1-3-3-1 Autosize DRAM, system BIOS stops execution here if the BIOS does not detect
anyusablememoryDIMMs
2C 1-3-4-1 Base RAM failure, BIOS stops execution here if entire memory is bad
46 2-1-2-3 Check ROM copyright notice
58 2-2-3-1 Test for unexpected interrupts
98 1-2 Search for option ROMs. One long, two short beeps on checksum failure
B4 1 One short beep before boot
82 007-4276-001
Error and Informational Messages
Table 4-3 shows the recovery BIOS Port-80 codes.
Tab le 4 -3 Recovery BIOS Port-80 Codes
CP Beeps Reason
xx 1-1-1-1 There are no processors present in the system, or the processors are so
incompatible that the system BIOS cannot be run (like mismatched cache
voltages).
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4: Solving Problems
Equipment Log
Use the blank equipment log in Table 4-4 to record information about the system. Some
of this information may be required when running the system setup utility (SSU).
Tab le 4 -4 Equipment Log
Item
System
Baseboard
Processor speed
and cache
Video display
Keyboard
Mouse
Diskette drive A
Diskette drive B
Tape drive
CD-ROM drive
Hard drive 1
Hard drive 2
Hard drive 3
Hard drive 4
Manufacturer
Name Model Number Serial Number Date Installed
Hard drive 5
84 007-4276-001
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