HP EliteBook 820 G1 Maintenance And Service Manual page 91

c.
Keyboard (see
d.
RTC battery (see
e.
Top cover (see
f.
Heat sink (see
g.
Fan (see Fan on page
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:
WWAN module (see
●
Solid-state drive (see
●
WLAN module (see
●
Memory modules (see
●
Remove the system board:
1. Turn the top cover upside down with the front toward you.
2. Release the ZIF connector (1) to which the power button board cable is attached, and then
disconnect the power button board cable from the system board.
3. Release the ZIF connector (2) to which the fingerprint reader board cable is attached, and then
disconnect the fingerprint reader board cable from the system board.
Keyboard on page 56)
RTC battery on page
Top cover on page 63)
Heat sink on page 78)
80)
WWAN module on page
Solid-state drive on page
WLAN module on page
Memory module on page
62)
49)
51)
53)
55)
Component replacement procedures
83