11. Lift the system board from the rear and disengage the interlock tabs at the
front; then, remove the system board.
Hex screws (4)
To replace the system board, reverse the previous steps.
Note: To update the programmed system serial number run the BIOS/Firmware
update utility. For latest BIOS/Firmware go to
http://www.ibm.com/pc/support/.
Captive screws (2)
Chapter 5. Service replaceable units
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