Dell 200, 4100, 180 service manual Basic Troubleshooting, Initial User Contact

Page 31

Chapter 2

Basic Troubleshooting

This chapter describes basic troubleshooting procedures that can help you diagnose a computer system problem. These procedures can often reveal the source of a problem or indicate the correct starting point for troubleshooting the system. (A brief explanation of how to load and start the system diagnostics is located near the end of this chapter.) Dell recommends that you perform the fol- lowing procedures in the order they are presented in this manual.

Initial User Contact

When you first contact a user who has a problem, ask the user to describe the problem and the conditions under which it occurs. A verbal description can often indicate the cause of a problem or else the appropriate troubleshooting procedure to use. After the user describes the problem, follow these steps:

1.Ask the user to back up any data on the hard-disk drive if the system’s condition permits.

Appendix C, “Maintaining the System,” in the User’s Guide provides infor- mation about backing up data.

2.Ask the user to try to duplicate the problem by repeating the operations he or she was performing at the time the problem occurred.

Can the user duplicate the problem? Yes. Proceed to step 3.

No. Proceed to the next section, “External Visual Inspection.”

3.Observe the user to determine if he or she is making an error, such as typing an incorrect key combination or entering a command incorrectly.

Is the problem a result of user error?

Yes. Instruct the user in the proper procedure, or direct him or her to the appropriate user documentation for the correct procedure.

No. Proceed to the next section, “External Visual Inspection.”

Basic Troubleshooting

2-1

Image 31
Contents Dell PowerEdge 4100/180 and 4100/200 Systems Page System Overview System FeaturesPage Computer Orientation Front-Panel Features Front/Left Internal View Back/Right Internal View I/O Panel Advanced Expansion Subsystem System MemoryIntegrated Server Management Scsi Hard-Disk Drives Scsi Configuration GuidelinesVideo Controller Integrated Scsi ControllersScsi ID Numbers System Unit System Power SupplyDC Voltage Ranges Power Supply Connectors DC Power Connector J11 P1 DC Power Connectors J12 P2, J13 P3, and J14 P4 Ddbp 12. Power-Supply Paralleling Board Connectors 13. DC Power Connector PWR1 15. DC Power Connector Pwrscsi Ddbp DC Power Distribution Redundant System 18. System Board Components System Board LayoutMain Memory Jumper Descriptions Interrupt AssignmentsInterrupt Assignments Dreq Line Assignments DMA Channel AssignmentsTechnical Specifications Technical SpecificationsSystem Clocks CD-ROM Power Technical Specifications Initial User Contact Basic TroubleshootingExternal Visual Inspection Observing the Boot Routine Internal Visual Inspection Eliminating Resource Conflicts Running the System DiagnosticsGetting Help Beep Codes Post Beep CodesBeep Codes System Error Messages System Error MessagesReal-time clock on Defective micro Wrong microprocessor Replace microprocessor Page Recommended Tools Removing and Replacing PartsComputer Covers Precautionary MeasuresKeylocks on Computer’s Back Panel Front Bezel Removal Front BezelDrive Hardware DrivesFront-Panel Insert Removal Front-Panel InsertsExternally Accessible Drives Removal Externally Accessible DrivesDrive-Mounting Rails Removal Hard-Disk Drive Carrier Removal Hard-Disk DrivesHard-Disk Drive Removal 10. Scsi Backplane Board Removal Scsi Backplane Board11. Power Supply Removal Power Supply12. Power-Supply Paralleling Board Removal Redundant Systems Power-Supply Paralleling Board13. Power Connector Panel Removal Nonredundant Systems Power Connector Panel14. Control Panel Removal Control Panel15. Cooling Fan Removal Cooling Fans16. System Board Components System Board Components17. Expansion Card Removal Expansion Cards18. Dimm Removal DIMMsMicroprocessor and Heat Sink 20. Microprocessor Configuration21. Microprocessor Securing Clip 23. Pin-1 Identification 24. System Battery Removal System Battery25. System Board Removal System BoardScreen Conventions System Setup ScreensTable A-1. Key Functions Key FunctionsMain Menu Screen Color CombinationsTable A-2. Main Menu Categories Post Boot Options SubmenuFigure A-3. Advanced Menu Advanced MenuTable A-4. Advanced Menu Categories Figure A-4. Security Menu Security MenuUser’s Guide Table A-5. Security Menu CategoriesFigure A-5. Exit Menu Exit MenuTable A-6. Exit Menu Categories Page Index Dreq line assignments Scsi Key functions, A-2main menu, A-3menus, A-1
Related manuals
Manual 102 pages 48.06 Kb Manual 71 pages 33.65 Kb Manual 132 pages 53.29 Kb Manual 157 pages 30.57 Kb Manual 6 pages 26.32 Kb Manual 214 pages 18.44 Kb