HP 684333-031 User Manual

Page of 142
Before removing the system board, follow these steps:
1.
Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the battery (see 
), and then remove the following components:
a.
Service cover (see 
)
b.
Optical drive (see 
)
c.
Hard drive (see 
d.
Fan (see 
e.
)
f.
Fan (see 
g.
Keyboard (see 
h.
Base enclosure (see 
)
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:
, if applicable)
Memory module (see 
)
)
Heat sink (see 
Processor (see 
)
Remove the system board:
1.
Position the computer right-side up, with the front toward you.
2.
Open the computer.
3.
Release the ZIF connector (1) to which the TouchPad cable is connected, and then disconnect the
TouchPad cable (2) from the system board.
4.
Release the ZIF connector (3) to which the fingerprint reader board cable is connected, and then
disconnect the fingerprint reader board cable (4) from the system board.
96
Chapter 4   Removal and replacement procedures