Removing The System Board - Dell Precision M40 Service Manual

The system board's BIOS chip contains the system service tag number, which is also visible on a bar-code label on the bottom of the computer.
The replacement kit for the system board assembly includes a diskette or CD that provides a utility for transferring the service tag number to the replacement
system board assembly.
NOTICE: If you received a flash BIOS update program diskette or CD with the replacement microprocessor, you must update the BIOS after replacing
the microprocessor module. For instructions on updating or reflashing the BIOS, see the Dell Portable Computer BIOS Update Guide.

Removing the System Board

1. Follow the instructions in "Preparing to Work Inside the
2. Remove the hard drive and the
3. Remove any installed Mini PCI
4. If migrating the memory, remove all installed
5. Remove the keyboard.
6. Remove the hinge cover.
7. Remove the display assembly.
8. Remove the palmrest assembly.
9. Remove the video graphics
10. Remove the microprocessor thermal cooling
11. If migrating the microprocessor, remove the
12. Remove the three 4-mm captive-washer screws from the system board.
13. Remove the 20-mm screw from the center of the LED board.
14. Lift the front of the system board and work it out of the back panel.
System Board
Computer."
fixed optical drive.
Cards.
memory modules.
board.
assembly.
microprocessor module.