Dell 1600SC manual Troubleshooting the System Board

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NOTE: Microprocessors with an internal speed of less than 3.06 GHz use an active cooling heat sink. Microprocessors with internal speeds greater than or equal to 3.06 GHz use a passive heat sink and plastic shroud.

Problem

System message indicates a problem with the microprocessor

Heat sink is not installed for the microprocessor

Fan is not operating properly

Action

CAUTION: Before you perform this procedure, see "Safety First—For You and Your System."

CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information Guide.

1.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

2.Remove the cover (see "Removing the Cover").

3.Lay the system on its right side.

4.Ensure that the microprocessor and heat sink with cooling fan are properly installed (see "Removing and Installing a Microprocessor" in "Installing System Options").

5.Stand the system upright.

6.Install the cover (see "Installing the Cover").

7.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.

8.Run Quick Tests in the system diagnostics (see "Running the System Diagnostics").

If the tests fail or the problem persists, see "Getting Help."

Troubleshooting the System Board

Problem

System message indicates a problem with the system board

Action

CAUTION: Before you perform this procedure, see "Safety First—For You and Your System."

CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information Guide.

1.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

2.Remove the cover (see "Removing the Cover").

3.Lay the system on its right side.

4.Remove all expansion cards installed in the system (see "Removing an Expansion Card" in "Installing System Options").

NOTE: If the boot drive is connected to a SCSI or RAID controller card, remove all expansion cards except the controller card used by the boot drive.

5.Stand the system upright.

6.Install the cover (see "Installing the Cover").

7.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.

8.Run Quick Tests in the system diagnostics (see "Running the System Diagnostics").

If the tests fail, see "Getting Help."

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Contents Initial release 22 Sep System Board Jumpers Jumpers, Switches, and ConnectorsJumpers-A General Explanation JumpersJumper Setting Description System Board ConnectorsTable A-1. System Board Jumper Settings Connector Description Disabling a Forgotten PasswordTable A-2. System Board Connectors Back to Contents Table B-1. I/O Connector Icons Ports and ConnectorsConnectors Icon ConnectorSerial Connector Autoconfiguration Serial ConnectorParallel Connector Pin Signal Definition18-25 PS/2-Compatible Keyboard and Mouse ConnectorsTable B-3. Parallel Connector Pin Assignments Video Connector USB ConnectorNetwork Cable Requirements Integrated NIC ConnectorPin Signal I/O Definition Abbreviations and Acronyms CGA Dimm EMI GUI LAN MBR Ntfs Pqfp SBE UMB ZIF Obtaining Technical Assistance IntroductionOther Documents You May Need Indicators, Codes, and Messages Front-Panel FeaturesBack-Panel Features Component DescriptionIndicator Function Power Indicator CodesPower Button Indicators Hard-Drive Status Indicator Codes Hard-Drive Indicator CodesNIC Indicator Codes Drive-Status Indicator Indicator CodeSystem Messages NIC Indicator CodesIndicator Indicator Code System MessagesDiskette Drive, Troubleshooting a CD Drive, Troubleshooting Guide System Beep Codes System Beep Codes Code Cause Corrective ActionDiagnostics Messages Alert MessagesInput Errors Finding Software SolutionsTroubleshooting Errors and Conflicts Before You BeginIRQ Assignment Conflicts IRQ Assignment DefaultsApplication Conflicts IRQ Line AssignmentFeatures of the System Diagnostics Running the System DiagnosticsRunning Server Administrator Diagnostics When to Use the System DiagnosticsUsing the System Diagnostics Using the Device Groups Menu Error MessagesChecking Specific System Problems Troubleshooting Your SystemSafety First-For You and Your System External ConnectionsStart-Up Routine Indications Start-Up RoutineSystem Orientation Look/listen for ActionBezel Removing the BezelSystem Cover Installing the BezelInstalling the Cover BaffleChecking the Equipment Installing the BaffleTroubleshooting the Video Subsystem Removing the BaffleTroubleshooting the Keyboard Troubleshooting the MouseTroubleshooting the Basic I/O Functions Troubleshooting a Serial I/O DeviceTroubleshooting a Parallel Printer Troubleshooting a USB DeviceTroubleshooting a NIC Inside the SystemTroubleshooting a Wet System Responding to a Systems Management Alert MessageTroubleshooting a Damaged System Troubleshooting the System BatteryTroubleshooting Redundant Power Supplies Troubleshooting a Nonredundant Power Supply Troubleshooting System CoolingTroubleshooting Expansion Cards Troubleshooting System Memory Troubleshooting the Diskette Drive Troubleshooting a CD Drive Troubleshooting a Tape Drive Troubleshooting an IDE Tape DriveTroubleshooting a Scsi Tape Drive Troubleshooting Hard Drives Troubleshooting an IDE Hard DriveTroubleshooting an IDE Hard Drive in a RAID Configuration Troubleshooting a Scsi Hard Drive System With Scsi BackplaneHard-drive cables Device drivers Troubleshooting a RAID Controller Card Troubleshooting a MicroprocessorTroubleshooting the System Board Resetting Corrupted Bios Configuration Back to Contents Removing the Front System Fan Installing System OptionsSystem Fans Removing the Back System Fan Installing the Front System FanInstalling the Back System Fan Installing a Redundant Power Supply Redundant Power SuppliesRemoving a Redundant Power Supply Installing an Expansion Card Expansion CardsRemoving and Installing an Expansion Card Removing an Expansion CardPerforming a Memory Upgrade Memory Upgrade KitsMemory Module Installation Guidelines Sample Memory Module ConfigurationsInstalling Memory Modules Removing and Installing a Memory ModuleRemoving Memory Modules Removing and Installing a MicroprocessorMicroprocessors Removing the Microprocessor Fan and Heat Sink Assembly System Battery Replacing the System BatteryReplacing the System Battery Drive Cable Configurations Installing DrivesConnecting Drives DC Power CablesScsi Interface Cables IDE Configuration InformationScsi Configuration Information Scsi ID NumbersDiskette Drive Configuring the Boot DriveInstalling a Diskette Drive Removing a Diskette DriveFront-Panel Drive Inserts Removing the Front-Panel Drive InsertsInch Drives Installing the Front-Panel Drive InsertsInstalling a 5.25-Inch Drive Page General Installation Guidelines Hard DrivesInstalling and Removing Non-Hot-Plug Hard Drives Removing and Installing a Non-Hot-Plug Hard DriveInstalling a Non-Hot-Plug Hard Drive Page Installing and Removing Hot-Plug Scsi Hard Drives Removing a Hot-Plug Hard Drive Installing a RAID Controller Card Installing a Hot-Plug Hard DriveBack to Contents Technical Assistance Online ServicesGetting Help Technical Support Service AutoTech ServiceAutomated Order-Status Service Ftp.dell.comBefore You Call Antigua and Barbuda Diagnostics ChecklistContacting Dell Argentina Buenos AiresAustria Vienna Website support.euro.dell.com Australia Sydney0011 900Czech Republic Prague Website support.euro.dell.com ColombiaCosta Rica Denmark Copenhagen Website support.euro.dell.comGrenada Germany Langen Website support.euro.dell.comGreece Website support.euro.dell.com GuatemalaLuxembourg Website support.euro.dell.com Korea SeoulLatin America MacaoNorway Lysaker Website support.euro.dell.com New ZealandNicaragua PanamaSouth Africa Johannesburg Website support.euro.dell.com Grenadines Singapore Singapore005 09/091Bracknell Website support.euro.dell.com 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