Dell 6100, 200 manual Checking Inside the Computer

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8.Check the SCSI cable connections to the SCSI backplane board and to the SCSI host adapter. Check the DC power cable connection to the SCSI backplane board.

The SCSI cable may be connected to the SCSI host adapter on the system board or to a SCSI host adapter card in an expansion slot. See Chapter 10, “Installing Drives in the Internal Bays,” for the loca- tion of the cable connectors on the SCSI backplane board and the SCSI host adapter.

Are the cables firmly connected? Yes. Go to step 10.

No. Continue to step 9.

9.Reseat the cable connectors, reconnect the com- puter and peripherals to their AC power sources, and turn them on.

Is the problem resolved?

Yes. The cable connections were not properly con- nected. You have fixed the problem.

No. Continue to step 10.

10.Partition and logically format the hard-disk drive. If possible, restore the files to the drive.

You may need to use different programs than those provided with your operating system to partition and logically format SCSI hard-disk drives. See Chapter 3, “Installing and Configuring SCSI Drivers,” in your system User’s Guide for information and instructions.

Is the problem resolved?

Yes. The hard-disk drive format was corrupted. You have fixed the problem.

No. See Chapter 11, “Getting Help,” for instructions on obtaining technical assistance.

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Contents 167$//$7,21$17528%/6+227,1**8 Page Protecting Against Electrostatic Discharge Safety InstructionsWhen Working Inside the Computer When Using the Computer System About This Guide PrefaceNotational Conventions Other Documentation You May NeedExamples autoexec.bat and c\windows Typographical ConventionsPage Contents Chapter Running the System Diagnostics Chapter Checking the Equipment Chapter Installing System Board Options Chapter Installing Drives in the External Bays Before You Call Figures Figure B-1 Column x 25-Line Character Set Subtest Screen Tables Page Dell Confidential Preliminary 12/17/96 Xxiv Backing Up Files Checking the BasicsBasic Checks Is the computer wet or damaged?Run the system diagnostics as described in Chap- ter Checking Connections and SwitchesBack Panel Features Is the monitor operating properly? Yes. Continue to step Turn on the systemLook and Listen Boot Routine IndicationsIs the keyboard operating properly? Yes. Continue to step Is the mouse or printer operating properly?System Configuration Utility System Setup ProgramSystem Messages Messages and CodesSystem Messages CodeMessage System Messages System Beep Codes System Beep CodesScsi Hard-Disk Drive Indicator Codes Diagnostics MessagesScsi Hard-Disk Drive Indicator Patterns Alert Log Messages From the Dell HIP ProgramPage Installing and Configuring Software Finding Software SolutionsUsing Software Error MessagesDefault IRQ Line Assignments Input ErrorsProgram Conflicts Avoiding Interrupt Assignment ConflictsWhen to Use the System Diagnostics Running the System DiagnosticsFeatures of the System Diagnostics Sample Diagnostics Menu Starting the System DiagnosticsSample System Diagnostics Main Screen How to Use the System DiagnosticsMain Menu Categories How to Use the MenuRun SelectRun Under Subtest SubtestOption Parameters OptionsKey-Help Test LimitsAbout Quit Tests in the System DiagnosticsSystem Diagnostics Tests System Diagnostics Tests Why Run a RAM Test? Error MessagesRAM Test Group System Set Test GroupWhy Run a System Set Test? Video Test Group Why Run a Video Test?Mouse Test Why Run a Keyboard Test?Keyboard Test Group Why Run a Diskette Drives Test? Why Run the Mouse Test?Diskette Drives Test Group Serial/Infrared Ports Test GroupParallel Ports Test Group Why Run a Serial/Infrared Ports Test?Scsi Devices Test Group Why Run a Parallel Ports Test?Why Run a Scsi Devices Test? Page Checking the Equipment Troubleshooting the MonitorRun the system diagnostics software Troubleshooting I/O Ports Troubleshooting the KeyboardChange the necessary statements in the start-up files Troubleshooting the Basic I/O FunctionsCheck the contents of the start-up files Troubleshooting a Serial I/O Device Troubleshooting a Parallel PrinterRun the parallel printer’s self-test Attempt another print operation on the parallel printerChecking Inside the Computer Safety First- For You and the ComputerRemoving the Computer Covers Removing and Replacing the Computer CoversRemoving the Computer Covers Replacing the Computer CoversRemove the computer covers Removing the Front BezelInside the Chassis Inside the Chassis-Front/Left Side View Responding to a Dell HIP Alert Message Troubleshooting a Wet ComputerLet the computer dry for at least 24 hours Troubleshooting a Damaged ComputerCheck all the board and card connections in the computer Verify all internal cable and component connectionsTroubleshooting the RTC Chip Replacing a Power Supply Troubleshooting Power Supply ProblemsTroubleshooting Power Cable Connections Troubleshooting a Cooling FanPower Cable Connectors on Power-Supply Paralleling Board Check the cable connections listed in TableReplace the left computer cover Reinstall the fan carrier in the computerReplacing a Cooling Fan Reseat the expansion cards in their connectors Troubleshooting Expansion CardsCorrect the system board’s configuration jumper settings Troubleshooting System MemoryRun the RAM Test Group in the system diagnostics Turn on the system, including any attached peripheralsTroubleshooting the Video Subsystem Remove the video expansion card, and repeat step Troubleshooting the System BoardDetermine whether a video expansion card is installed Disconnect the keyboard and reboot the system Troubleshooting the Diskette Drive SubsystemChecking the Diskette Drive Subsystem Troubleshooting the Diskette Drive Sub- systemCheck the diskette drive cabling Repeat steps 1 and 2, and remove all expansion cardsTroubleshooting a Scsi Tape Drive Drive Indicator Error Codes Troubleshooting Scsi Hard-Disk DrivesRemove the drive carrier and install it in another drive bay Troubleshooting the Scsi Hard-Disk DriveChecking Inside the Computer Page Installing System Board Options Installing System Board OptionsExpansion Cards System Board FeaturesExpansion Cards Installing an Expansion CardConnect any cables that should be attached to the card Relocating or Removing an Expansion CardAdding Memory Memory Upgrade KitsSimm Installation Guidelines Sample Simm Configurations Shows the location of the Simm sockets on the memory module Performing a Memory UpgradeInstalling SIMMs Removing SIMMs Valid Microprocessor Configurations Remove the left computer cover Remove the microprocessor from the socket Remove the appropriate modulesRemove the heat sink Unpack the new microprocessor Install the microprocessor in the socket see Fig- ureReplace the microprocessor securing clip Replacing the RTC Chip13. RTC Chip Install the new RTC chipPage Installing Drives in the External Bays Installing Drives in the External BaysExternal Drive Bay Hardware Before You BeginRemoving and Replacing Front-Panel Inserts Connecting the DriveScsi Configuration Information Installing Scsi Devices in the External BaysDC Power Cables Remove the computer covers and front bezel Installing a Scsi DevicePrepare the drive for installation Page Configure the controller card if necessary Remove both computer covers and the front bezel Prepare the tape drive and controller card for installationInstalling Drives in the Internal Bays 10-1 Installing Drives in the Internal BaysInternal Drive Hardware Scsi Hard-Disk Drive ConfigurationInstall any required Scsi device drivers Removing and Installing a Scsi Hard-Disk DriveRemove the hard-disk drive Scsi Hard-Disk Drive Indicator PatternsInstalling Drives in the Internal Bays 10-5 Partitioning and Formatting Scsi Hard-Disk Drives Configuring the Boot DeviceGetting Help Run the diagnostics for your Dell systemTechnical Assistance Help ToolsHelp Tools System DocumentationWorld Wide Web on the Internet Dell Diagnostics Program Commercial Online ServicesAutoTech Service TechFax ServiceTechnical Support Service Problems With Your OrderProduct Information TechConnect BBSDell Contact Numbers Returning Items for Warranty Repair or CreditBefore You Call International Dialing Codes 1344Getting Help 11-7 Australia Dell Contact NumbersAustria BelgiumCzech Republic CanadaChina Finland DenmarkFrance GermanyItaly IrelandJapan KoreaMacau LuxembourgMalaysia MexicoNorway New ZealandPoland SingaporeTaiwan SwedenSwitzerland Austin, Texas AutoTech Automated technical support Page Diagnostics Checklist Diagnostics Checklist Text Mode Character Test Diagnostic Video TestsVideo Memory Test Video Hardware TestCharacter Set Subtest 80 x Character Attributes Subtest 80 xCharacter Attributes Subtest 40 x Character Set Subtest 40 xTable B-1. Color Attributes Text Mode Color TestColor Attributes Subtest 80 x Graphics Mode Test Text Mode Pages Test640 x 200 16-Color Graphics Mode Screen 320 x 200 16-Color Graphics Mode Screen640 x 350 16-Color Graphics Mode Screen 640 x 480 2-Color Graphics Mode ScreenColor Palettes Test Solid Colors Test Page Jumpers and Switches General Explanation Jumpers, Switches, and ConnectorsSwitches JumpersSystem Board Figure C-1. System Board Jumpers and SwitchesClear Cmos Clear Password Reserved Bios Recovery Table C-1. System-Board Jumper and Switch SettingsVideo Sleep System Board Labels Table C-2. System Board Connectors and SocketsFigure C-2. Microprocessor Module Jumpers Microprocessor ModuleTable C-3. Microprocessor Module Jumper Settings Scsi Backplane Board Table C-4. Scsi Backplane Board ConnectorsFigure C-4. Power-Supply Paralleling Board Power-Supply Paralleling BoardTable C-5. Power-Supply Paralleling Board Connectors Disabling a Forgotten PasswordDer Telekommunikation Abbreviations and AcronymsDram LIF Verband Deutscher Elektro Index Page Index Page Index Page Switches settings table, C-3 Page Index

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