Dell Inspiron 2500 - Manual (Page 35)

Replacing the LED Board
1. Align the two screw holes with the two mounting holes on the bottom case assembly, and press the board into its connector.
2. Replace the two 4-mm screws.
System Board Assembly
The system board's BIOS 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 floppy disk or CD that provides a utility for transferring the service tag number to the replacement system board
assembly.
Removing the System Board
1. Follow the instructions in " Preparing to Work Inside the Computer ."
2. Remove the hard drive and fixed optical drive .
3. Remove any installed Mini PCI cards .
4. If migrating the memory, remove all installed memory modules .
5. Remove the keyboard assembly.
6. Remove the hinge cover .
7. Remove the display assembly .
8. Remove the palm rest assembly .
9. Remove the video memory cache card , if present.
10. Remove the microprocessor thermal cooling assembly .
11. If migrating the microprocessor, remove the microprocessor module .
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. If migrating the LED board , remove it.
15. Lift the front of the system board and work it out of the back panel.
NOTICE: Disconnect the computer and attached devices from electrical outlets and remove any installed battery.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface on the computer.
NOTICE: After replacing the microprocessor module, update the BIOS using a flash BIOS update program floppy disk or CD that came with the
replacement microprocessor.