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System Board

Dell™ Dimension™ 2400 Series

  Removing the System Board

  Installing the System Board

Removing the System Board

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual or Product Information Guide.

1. Shut down the computer through the Start menu.
   
   
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.
   
   

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.

3. Disconnect any telephone or telecommunication lines from the computer.
   
   
4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
   
   

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

5. Remove the computer cover.
   
   

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

6. Remove the floppy drive.
   
   
7. Remove any cards that are installed.
   
   
8. Disconnect all cables from the system board.
   
   
9. Lift up the heat-sink shroud.
   
   

CAUTION: The microprocessor heat sink can get hot. To avoid burns, ensure that the heat sink has had sufficient time to cool before you touch it.

10. Remove the microprocessor heat sink.
    
    
11. Remove the fan assembly.
    
    
12. Remove the 12 screws that secure the system board to the computer frame.
    
    

Four of the 12 screws that secure the system board to the computer frame also secure the heat-sink base to the system board.

13. Lift the system board out from the computer.
    
    
14. Place the system board that you just removed next to the replacement system board.
    
    

Visually compare the replacement system board to the existing system board to ensure that you have the correct part.

Installing the System Board

1. Transfer components from the existing system board to the replacement system board:
   
   
   1. Remove the memory modules and install them on the replacement board.
      
      

CAUTION: The microprocessor package can get hot. To avoid burns, ensure that the package has had sufficient time to cool before you touch it.

2. Remove the microprocessor package from the existing system board and transfer it to the replacement system board.
   
   

2. Configure the settings of the replacement system board.
   
   

Set the jumpers on the replacement system board so that they are identical to the ones on the existing board.

3. Place the system board inside the computer frame, place the heat-sink base on the system board, and then replace the screws that you removed in step 12 of the preceding procedure.
   
   
4. Reinstall the fan assembly.
   
   
5. Reinstall the microprocessor heat sink, and then lower the heat-sink shroud.
   
   
6. Reattach the cables to the system board.
   
   
7. Reinstall any cards.
   
   
8. Replace the floppy drive.
   
   
9. Replace the computer cover.
   
   

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

10. Connect your computer and devices to electrical outlets, and turn them on.
    
    

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