Dell 4100, 200, 180 service manual System Board Removal

Page 66

System Board

system board

slot (13)

screw

Figure 4-25. System Board Removal

To remove the system board, follow these steps:

1.Disconnect all cables from their connectors at the back of the system unit.

2.Remove all expansion cards.

3.Disconnect all cables from the system board.

4.Remove the system board as follows:

a.Remove the screw that secures the system board to the vertical wall of the computer chassis.

b.Slide the system board toward the front of the computer approximately 1/2 inch to release the board from the 13 slots in the computer chassis.

c.Lift the system board out of the computer.

If you are replacing a system board, remove the DIMMs, the microprocessor(s), and the expansion card from the old system board and install them on the replacement board.

4-24 Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual

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Contents Dell PowerEdge 4100/180 and 4100/200 Systems Page System Features System OverviewPage Computer Orientation Front-Panel Features Front/Left Internal View Back/Right Internal View I/O Panel System Memory Advanced Expansion SubsystemIntegrated Server Management Integrated Scsi Controllers Scsi Configuration GuidelinesVideo Controller Scsi Hard-Disk DrivesScsi ID Numbers System Power Supply System UnitDC 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 System Board Layout 18. System Board ComponentsMain Memory Interrupt Assignments Jumper DescriptionsInterrupt Assignments DMA Channel Assignments Dreq Line AssignmentsTechnical Specifications Technical SpecificationsSystem Clocks CD-ROM Power Technical Specifications Basic Troubleshooting Initial User ContactExternal Visual Inspection Observing the Boot Routine Internal Visual Inspection Running the System Diagnostics Eliminating Resource ConflictsGetting Help Post Beep Codes Beep CodesBeep Codes System Error Messages System Error MessagesReal-time clock on Defective micro Wrong microprocessor Replace microprocessor Page Removing and Replacing Parts Recommended ToolsPrecautionary Measures Computer CoversKeylocks on Computer’s Back Panel Front Bezel Front Bezel RemovalDrives Drive HardwareFront-Panel Inserts Front-Panel Insert RemovalExternally Accessible Drives Externally Accessible Drives RemovalDrive-Mounting Rails Removal Hard-Disk Drives Hard-Disk Drive Carrier RemovalHard-Disk Drive Removal Scsi Backplane Board 10. Scsi Backplane Board RemovalPower Supply 11. Power Supply RemovalPower-Supply Paralleling Board 12. Power-Supply Paralleling Board Removal Redundant SystemsPower Connector Panel 13. Power Connector Panel Removal Nonredundant SystemsControl Panel 14. Control Panel RemovalCooling Fans 15. Cooling Fan RemovalSystem Board Components 16. System Board ComponentsExpansion Cards 17. Expansion Card RemovalDIMMs 18. Dimm Removal20. Microprocessor Configuration Microprocessor and Heat Sink21. Microprocessor Securing Clip 23. Pin-1 Identification System Battery 24. System Battery RemovalSystem Board 25. System Board RemovalSystem Setup Screens Screen ConventionsKey Functions Table A-1. Key FunctionsScreen Color Combinations Main MenuTable A-2. Main Menu Categories Boot Options Submenu PostAdvanced Menu Figure A-3. Advanced MenuTable A-4. Advanced Menu Categories Security Menu Figure A-4. Security MenuTable A-5. Security Menu Categories User’s GuideExit Menu Figure A-5. 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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