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Before removing the system board, follow these steps:
1. Shut down 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 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 battery (see
Battery on page 52).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 53)
b. WLAN (see
WLAN module on page 58)
c. Optical drive (see
Optical drive on page 56)
d. Keyboard (see
Keyboard on page 63)
e. Top cover (see
Top cover on page 65)
f. Speaker assembly (see
Speaker assembly on page 68)
g. Display assembly (see
Display assembly on page 76)
h. Top cover (see
Top cover on page 65)
Remove the following cables from the system board if still connected:
●
Power connector cable (see
Power connector cable on page 75)
●
Bluetooth cable (see
Bluetooth module on page 73)
●
USB board cable (see
USB board on page 74)
1. Turn the computer upright with the right side toward you.
2. Remove the three Phillips PM2.5×3.0 screws that secure the system board to the computer.
84 Chapter 4 Removal and replacement procedures ENWW