9. Disconnect the following cables from the system board:
(1) MSR LED board
(2) Fingerprint reader board
(3) Right speaker
(4) Power button board
(5) RTC battery
(6) Left speaker
(7) Fan assembly
10. Remove the 6 Phillips screws that secure the system board to the computer head unit (1).
11. Remove the system board from the computer head unit (2).
To install the system board, reverse the removal procedures.
NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
60 Chapter 4 Removal and replacement procedures
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