Dell 100-Mbps manual System Unit Orientation

Page 11

left side

back of system unit

right side

front of system unit

Figure 1-1. System Unit Orientation

CAUTION: To avoid possible data or file structure corruptions, the front-panel reset button should be used only when the system cannot be rebooted by pressing <Ctrl><Alt><Del>. Before you use the reset button to initiate a hardware reset, close any open application programs and files if possible.

System Overview

1-3

Image 11

Contents 659,&0$18$ Page Contents Chapter Removing and Replacing Parts Chapter Basic TroubleshootingChapter Beep Codes and Error Messages Figures Index16. Expansion-Card Cage Removal TablesPage Read This First System Overview System Features System Unit Orientation Front-Panel Features Advanced Expansion Subsystem Dual-Processor CapabilityPCI Video Card Hard-Disk Drive OptionsEnhanced Dual-Interface Eide Subsystem Audio ControllerThermal Monitoring Desktop ChassisSmart Support System Power SupplyPin Assignments for the DC Power Connectors System UnitDC Power Connector P1 DC Power Connector P7 DC Power DistributionPower Distribution Video Memory System Board LayoutSystem Board Jumpers Main MemoryJumper Descriptions Interrupt AssignmentsIRQ14 DMA Channel AssignmentsTechnical Specifications Technical SpecificationsNIC CtrlAltEnter To 149 F Page Initial User Contact Basic TroubleshootingExternal Visual Inspection Observing the Boot Routine Internal Visual Inspection Eliminating Resource Conflicts Running the Diskette-Based DiagnosticsGetting Help Post Beep Codes Beep Codes and Error MessagesPost Beep Codes Halted System Error MessagesSystem Error Messages System could not suc System Setup program Incorrect configuration During memory test Faulty or improperly System does not recog Faulty diskette, diskette MS-DOS unable to Defective sectors on dis At system start-up One or both micro Recommended Tools Removing and Replacing PartsProtection of the Equipment Precautionary MeasuresPull the floor stand away from the system unit Floor StandSystem-Unit Cover Removal System Unit CoverEject, Power, and Reset Button Removal Eject, Power, and Reset ButtonsFront-Panel Insert Removal Front-Panel InsertsIndicator Card Removal Indicator CardSpeaker Removal SpeakerDrive Hardware Drives5-Inch Diskette Drive Removal Drives in the Drive Cage10 .25-Inch Drive Removal Lift the hard-disk drive bracket out of the system unit Hard-Disk Drives12. Hard-Disk Drive Removal 13. Power Supply Removal System Power Supply14. Microprocessor Fan Removal Microprocessor Fan15. System Board Components System Board ComponentsExpansion-Card Cage Expansion Cards17. Expansion-Card Removal Expansion Card18. Riser Board Removal Riser Board19. Dimm Removal DIMMs21. Microprocessor Securing Clip Microprocessor/Heat Sink Assembly22. Microprocessor Removal Terminator Card Terminator or Add-In Card24. Add-In Card Removal Add-In CardRemove the battery System BatteryRemove the system board as follows System BoardSystem Setup Program USB System Setup ScreensTable A-1. System Setup Categories Be shadowed or cached. If video problems Check the monitor documentation to make Table A-1. System Setup Categories Index Dskt connector, 1-12,4-16dual-processing,1-5 ECC DIMMs LINE-IN connector, 1-12,4-16 USB description Location, 1-4,1-12