●
USB board (see
USB board on page 71)
●
Power connector cable (see
Power connector cable on page 73)
6. Disconnect the display cable from the system board (see
Display assembly on page 75).
NOTE: When replacing the system board, be sure that the following components are removed from
the defective system board and installed on the replacement system board:
● Memory module (see Memory module on page 50)
●
RTC battery (see
RTC battery on page 55)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 89)
●
Processor (Intel only; see
Processor on page 95)
NOTE: AMD processors come soldered to the system board and cannot be removed or
replaced.
To remove the system board:
1. Close the computer, turn it upside down, and then disconnect the optical drive connector cable
from the system board.
2. Turn the computer back over, open it, and then remove the two Phillips PM2.5×4.0 screws (1)
that secure the system board to the base enclosure.
Component replacement procedures 85
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