HP ProBook 640 G2 Maintenance And Service Manual page 70

IMPORTANT:
replacement
Before removing the system board, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the following components:
a. Service door (see
b. Battery (see
c. Hard drive (see
d. Solid-state drive (see
e. WWAN module (see
f. WLAN module (see
g. Optical drive (see
h. Keyboard (see
i. Hinge covers (see
j. Base enclosure (see
Remove the system board:
1. Disconnect the RTC battery cable (2) and the power button board cable (2).
2. Loosen 3 P1 captive screws (1) on the fan, remove 4 M2x3L P1 screws (2) from the system board, and
remove 2 M2x3L screws from the ODD board (3).
60 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Make special note of each screw and screw lock size and location during removal and
Service door on page
Battery on page
Hard drive on page
Solid-state drive (select products only) on page
WWAN module (select products only) on page
WLAN module on page
Optical drive on page
Keyboard on page
Hinge cover on page
Base enclosure on page
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