Dell 990 Chassis Intrusion Switch, Speaker, Heat Sink, Coin-Cell Battery, Power-Switch Cable

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Installing The Memory	28
8 Chassis Intrusion Switch	29
Removing the Chassis Intrusion Switch	29
Installing The Chassis Intrusion Switch	30
9 Speaker	31
Removing The Speaker	31
Installing The Speaker	32
10 Heat Sink	33
Removing The Heat Sink and Processor	33
Installing The Heat Sink and Processor	35
11 Coin-Cell Battery	37
Removing The Coin-Cell Battery	37
Installing The Coin-Cell Battery	38
12 Power-Switch Cable	39
Removing The Power-Switch Cable	39
Installing The Power-Switch Cable	40
13 Front Thermal Sensor	41
Removing The Front Thermal Sensor	41
Installing The Front Thermal Sensor	42
14 Chassis Fan	43
Removing The System Fan	43
Installing The System Fan	44
15 Input/Output Panel	47

Removing The Input/Output Panel	47
Installing The Input/Output Panel	48

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Contents Regulatory Model D05D Regulatory Type D05D001 Page Contents Chassis Intrusion Switch Coin-Cell BatteryPower-Switch Cable SpeakerPower Supply Power Supply Unit PSU Thermal SensorSystem Setup TroubleshootingMemory allocation error No timer tick interruptDecreasing available memory Diskette read failureSpecifications Contacting DellPage Working on Your Computer Before Working Inside Your ComputerRecommended Tools Turning Off Your ComputerAfter Working Inside Your Computer Page Cover Installing The CoverRemoving the Cover Follow the procedures in After Working Inside Your Computer Front Bezel Removing the Front BezelInstalling The Front Bezel Cards Removing the Expansion CardPage Installing The Expansion Card Page Optical Drive Removing the Optical DriveInstalling The Optical Drive Hard Drive Removing the Hard DrivePage Installing The Hard Drive Page Memory Removing the MemoryInstalling The Memory Chassis Intrusion Switch Removing the Chassis Intrusion SwitchInstalling The Chassis Intrusion Switch Speaker Removing The SpeakerInstalling The Speaker Heat Sink Removing The Heat Sink and ProcessorPage Installing The Heat Sink and Processor Page Coin-Cell Battery Removing The Coin-Cell BatteryInstalling The Coin-Cell Battery Power-Switch Cable Removing The Power-Switch CableInstalling The Power-Switch Cable Front Thermal Sensor Removing The Front Thermal SensorInstalling The Front Thermal Sensor Chassis Fan Removing The System FanInstalling The System Fan Follow the procedures in After Working Inside Your Computer Page Input/Output Panel Removing The Input/Output PanelInstalling The Input/Output Panel Remove the Input/Output panelPower Supply Removing The Power SupplyPage Installing The Power Supply Lift the power supply out of the computerPage System Board Removing The System BoardInstalling The System Board Follow the procedures in After Working Inside Your Computer Page Power Supply Unit PSU Thermal Sensor Removing The PSU Thermal SensorInstalling The PSU Thermal Sensor System Setup System SetupBoot Menu Boot Menu EnhancementsTiming Key Sequences System Setup Options Beep Codes and Text Error MessagesNavigation Technology SATA-2, SATA-3, and LOM MAC AddressSystem Configuration Video SecurityAllow Non-Admin Password Changes This option is Performance Power Management Protector or if Auto Power is set to disabledEnable F12 Boot menu enabled by default Post BehaviorMaintenance Virtualization SupportImage Server Address is255.255.255.255 Setting isSystem Logs Displays the Bios Progress event log Clear LogPage Troubleshooting Diagnostic LEDsDiagnostic Light Patterns Power Button ProblemPower Button StepsPower Button Problem Description LED If the problem persists, the system board is faulty Troubleshooting Steps Re-seat the processorTroubleshooting Steps Your computer Possible expansion card failure has occurredBeep Codes Code1-1-2Cause Code CauseCode Cause DMA page register read/write failure Through CodeCause Keyboard Controller Test failure Code Address mark not found Error MessagesCode Cause Cache test failure Alert! Security override Jumper is installed Bad command or file nameBad error-correction code ECC on disk read Data errorDiskette subsystem reset failed Hard-disk drive configuration errorDecreasing available memory Diskette drive 0 seek failureInvalid configuration information-please run Setup program Invalid Memory configuration, please populate DIMM1Hard-disk drive controller failure Hard-disk drive failureMemory allocation error Memory size in Cmos invalidNo boot device available No boot sector on hard-disk driveNo timer tick interrupt Non-system disk or disk errorRead fault Reset failedSeek error Requested sector not foundTime-of-day not set-please run the System Setup program Timer chip counter 2 failedUnexpected interrupt in protected mode Write faultWrite fault on selected drive \ is not accessible. The device is not readyPage Specifications Technical SpecificationsProcessor TypeAudio NetworkSystem Information Expansion BusPCI External Connectors DrivesConnector System Board ConnectorsFactor Back Panel Ultra Small Form Factor Front Panel Video Vary based on the graphics cardSmall Form Factor Ultra Small Form Factor Controls and Lights Power system by System power supplyTurned on and is functional. OutletPhysical Height Width Depth Weight Power Wattage Maximum Voltage Heat DissipationEnvironmental Storage Grms Maximum shock Operating 40 G 105 G Altitude Airborne contaminant levelS71.04-1985 102Contacting Dell Contacting DellVisit support.dell.com