Dell 180, 4100, 200 service manual Eliminating Resource Conflicts, Running the System Diagnostics

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4.Verify that all jumpers are set correctly.

For information about these jumpers, see “System Board Jumpers” in Chap- ter 1.

5.Check all cable connectors inside the computer to verify that they are firmly attached to their appropriate connectors.

6.Reinstall the computer cover.

7.Reconnect the computer and any attached peripherals to their power sources, and turn them on.

Does the problem appear to be resolved?

Yes. No further steps are necessary. Terminate the procedure.

No. Proceed to the next section, “Eliminating Resource Conflicts,” and to “Getting Help” found later in this chapter.

Eliminating Resource Conflicts

Devices within the computer may require dedicated memory spaces, interrupt levels, or DMA channels, all of which must be allocated during installation of the devices. Because a device may be installed at a different time, it is possible that the same resource is assigned to two or more devices.

Resource conflicts can result in disorderly or erratic system operation or failure of the system to operate at all. If you suspect that resource conflicts might exist, check the system and reassign the resources as necessary.

Running the System Diagnostics

The system diagnostics (included on the Dell Server Assistant CD) contains tests that aid in troubleshooting all major components of the computer system.

To start the diagnostics, insert the CD into the CD-ROM drive, and then press the reset button on the computer.

Restarting the computer causes the Dell Server Assistant logo screen to appear on the monitor screen, followed by a screen containing icons of the options available. Selecting the Run System Utilities icon brings up a screen with the diagnostics icon. Before the Dell Server Assistant loads, a program tests the portion of main memory (RAM) required for loading the diagnostics. If a main memory error is detected, a message telling you which DIMM has failed appears on the screen.

Basic Troubleshooting

2-5

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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 Integrated Server Management System MemoryAdvanced Expansion Subsystem Scsi Hard-Disk Drives Scsi Configuration GuidelinesVideo Controller Integrated Scsi ControllersScsi ID Numbers DC Voltage Ranges System Power SupplySystem Unit 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 Interrupt Assignments Interrupt AssignmentsJumper Descriptions 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
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