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System Board

Dell™ Latitude™ 110L Service Manual

  Removing the System Board

  Installing the System Board

Removing the System Board

CAUTION: Before performing the following procedures, read the safety instructions in the Product Information Guide.

CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.

The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes a CD that provides a utility for transferring the Service Tag to the replacement system board.

1. Follow the instructions in "Before Working Inside Your Computer."
   
   
2. Remove the hard drive.
   
   
3. Remove the optical drive.
   
   
4. Remove the memory module.
   
   
5. Remove the keyboard.
   
   
6. Remove the Mini PCI card.
   
   
7. Remove the modem.
   
   
8. Remove the display assembly.
   
   
9. Remove the palm rest.
   
   
10. Remove the microprocessor thermal-cooling assembly.
    
    
11. Remove the microprocessor.
    
    
12. Remove the speakers.
    
    
13. Remove the four M2.5 x 5-mm screws from the hard drive cage and remove the hard drive cage.
    
    

1	M2.5x5-mm screws (4)
2	hard drive cage

14. Remove the two hex nuts that secure the video connector to the base plastics.
    
    

1	hex screws (2)

15. Disconnect the display switch connector from the system board.
    
    

1	display switch connector

16. Remove any cards from the PCMCIA slot.
    
    
17. Remove the two M2.5 x 5-mm system board screws and lift the front of the system board out and away from the base plastics.
    
    

1	M2.5 x 5-mm screws (2)

Installing the System Board

1. Insert the video connector on the replacement system board through the back of the base plastics.
   
   
2. Replace the two hex nuts that secure the video connector to the base plastics.
   
   
3. Replace the two M2.5 x 5-mm screws that secure the system board to the base plastics.
   
   
4. Replace the four M2.5 x 5-mm screws that secure the hard drive cage to the system board.
   
   

1	M2.5x5-mm screws (4)
2	hard drive cage

5. Replace the speakers.
   
   
6. Replace the microprocessor.
   
   

NOTICE: Before you replace the microprocessor thermal-cooling assembly, wipe the thermal grease off of the assembly with a clean paper towel. Squeeze the contents of the thermal grease packet (provided with the kit) onto the microprocessor thermal-cooling assembly.

7. Replace the palm rest.
   
   
8. Replace the microprocessor thermal-cooling assembly.
   
   
9. Replace the cooling fan.
   
   
10. Replace the display assembly.
    
    
11. Replace the keyboard.
    
    
12. Replace the Mini PCI card, modem, and memory module that you removed from the old system board.
    
    
13. Replace the optical drive.
    
    
14. Replace the hard drive.
    
    
15. Insert the battery into the battery bay.
    
    
16. Connect the AC adapter to the computer and to an electrical outlet.
    
    

NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer.

NOTE: After replacing the system board, enter the computer Service Tag into the BIOS of the replacement system board.

17. Turn on the computer.
    
    
18. Insert the CD that accompanied the replacement system board into the appropriate drive, and turn on the computer. Follow the instructions on the screen.
    
    

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