Dell Latitude 120L - Manual (Page 36)

Replacing the System Board
1. Insert the video connector on the replacement system board through the side of the base plastics.
2. Replace the five M2.5 x 5-mm screws that secure the system board to the base plastics.
3. Reconnect the speakers. See Replacing the Speakers .
4. Replace the modem that you removed from the system board. See Replacing the Modem .
5. Replace the palm rest. See Palm Rest .
6. Replace the display assembly. See Removing the Display Assembly and follow the procedure in reverse order.
7. Replace the keyboard. See Replacing the Keyboard .
8. Replace the processor. See Replacing the Processor Module .
9. Replace the processor thermal-cooling assembly. See Replacing the Processor Thermal-Cooling Assembly .
10. Replace the Mini PCI card that you removed from the old system board. See Replacing the Mini PCI Card .
11. Replace the memory module that you removed from the old system board. See Replacing the Memory Module .
12. Replace the optical drive. See Replacing the Optical Drive .
13. Replace the hard drive. See Replacing the Hard Drive .
14. Insert the battery into the battery bay. See Before Working Inside Your Computer .
15. Connect the AC adapter to the computer and to an electrical outlet.
16. Turn on the computer.
17. Insert the CD that accompanied the replacement system board into the appropriate drive. Follow the instructions on the screen.
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1 M2.5 x 5-mm screws (5)
NOTICE: Before you replace the processor 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 processor thermal-cooling assembly.
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.