Dell Latitude C840 Service Manual - Page 56

Removing the System Board - bios update

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System Board: Dell Latitude C840 Service Manual 2 system board 3 network connector 4 modem connector 5 network cable cover 6 M2.5 x 20-mm screw The BIOS chip on the system board contains the service tag sequence, which is also visible on a bar code label on the bottom of the computer. The replacement kit for the system board includes a floppy disk or CD that provides a utility for transferring the service tag sequence to the replacement system board. NOTICE: If you received a flash BIOS update floppy disk or CD with the replacement microprocessor, you must update the BIOS after replacing the microprocessor module. Removing the System Board 1. Follow the instructions in "Preparing to Work Inside the Computer." 2. Remove the hard drive and the fixed optical drive. 3. Remove any installed Mini PCI Cards. 4. If migrating the memory, remove all installed memory modules. 5. Remove (if migrating) or disconnect the modem daughter card. 6. Remove the keyboard. 7. Remove the hinge cover. 8. Remove the display assembly. 9. Remove the palm rest. 10. Remove the video graphics board. 11. Remove the microprocessor thermal-cooling assembly. file:///F|/Service%20Manuals/Dell/Latitude/c840/sysboard.htm (2 of 5) [2/28/2004 8:03:45 AM]

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System Board: Dell Latitude C840 Service Manual
2
system board
3
network connector
4
modem connector
5
network cable cover
6
M2.5 x 20-mm screw
The BIOS chip on the system board contains the service tag sequence, which is also
visible on a bar code label on the bottom of the computer.
The replacement kit for the system board includes a floppy disk or CD that provides a
utility for transferring the service tag sequence to the replacement system board.
NOTICE:
If you received a flash BIOS update floppy disk or CD with the
replacement microprocessor, you must update the BIOS after replacing the
microprocessor module.
Removing the System Board
1.
Follow the instructions in "
Preparing to Work Inside the Computer
."
2.
Remove the
hard drive
and the
fixed optical drive
.
3.
Remove any installed
Mini PCI Cards
.
4.
If migrating the memory, remove all installed
memory modules
.
5.
Remove (if migrating) or disconnect the
modem daughter card
.
6.
Remove the
keyboard.
7.
Remove the
hinge cover
.
8.
Remove the
display assembly
.
9.
Remove the
palm rest
.
10.
Remove the
video graphics board
.
11.
Remove the
microprocessor thermal-cooling assembly
.
file:///F|/Service%20Manuals/Dell/Latitude/c840/sysboard.htm (2 of 5) [2/28/2004 8:03:45 AM]