HP Compaq Presario CQ57 Maintenance And Service Manual page 77

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
●
RTC battery (see RTC battery on page
●
Fan and heat sink (see
●
Processor (see Processor on page
Remove the system board:
1. Disconnect the optical drive connector cable from the system board.
2. Remove the Phillips PM2.5×6.0 screw (1) that secures the system board to the base enclosure.
3. Lift the right side of the system board (2) until it rests at an angle.
Memory module on page
71)
Fan/heat sink assembly on page
79)
42)
73)
Component replacement procedures
Meijer.com
69