Reverse the preceding procedure to install the system board.
RTC battery
Description Spare part number
RTC battery 651038-001
Before removing the RTC battery, 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 50).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 60)
b. Optical drive (see
Optical drive on page 57)
c. Keyboard (see
Keyboard on page 66)
d. Modem module (see
Modem module on page 72)
e. Fan (see
Fan on page 76)
f. Heat sink (see
Heat sink on page 78)
g.
Base enclosure cover (see
Base enclosure cover on page 82)
h. Display assembly (see
Display assembly on page 89)
i. System board (see
System board on page 96)
Remove the RTC battery:
1. Position the system board right-side up, with the front toward you.
Component replacement procedures
99
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