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2. Remove the RTC battery from the socket on the system board.
Reverse this procedure to install the RTC battery.
ExpressCard assembly
NOTE: All system board spare part kits include the ExpressCard assembly.
Before removing the ExpressCard assembly, 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 37).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 38)
b. Optical drive (see
Optical drive on page 45)
c. Keyboard (see
Switch cover and keyboard on page 47)
d. Switch cover (see
Switch cover and keyboard on page 47)
e. Speaker (see
Speaker on page 51)
f. Display lid switch module (see
Display lid switch module on page 52)
g. Display assembly (see
Display assembly on page 53)
h. Top cover (see
Top cover on page 58)
i. System board (see
System board on page 66)
Component replacement procedures 79