2.
Remove the fan (2).
Reverse this procedure to install the fan.
RTC battery
Description Spare part number
RTC battery (includes cable and double-sided adhesive) 718440-001
Before removing the RTC battery, 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
Battery on page 40), and then remove the following components:
a. Service cover (see
Service cover on page 41)
b. Hard drive (see
Hard drive on page 42)
c. Optical drive (see
Optical drive on page 50)
d. Keyboard (see
Keyboard on page 52)
e. Top cover (see
Top cover on page 55)
f.
Speakers (see
Speakers on page 64)
g. System board (see
System board on page 67)
Component replacement procedures
77