Specifications

RTC battery
Description Spare part number
RTC battery 449137-001
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 42).
5. Remove the following components:
a. Switch cover and keyboard (see
Switch cover and keyboard on page 43)
b. Memory module (see
Memory module on page 46)
c. Optical drive (see
Optical drive on page 48)
d. Speakers (see
Speakers on page 50)
e. Palm rest (see
Palm rest on page 51)
f. WLAN module (see
WLAN module on page 56)
g. Hard drive (see
Hard drive on page 53)
h. Display assembly (see
Display assembly on page 60)
i. Top cover (see
Top cover on page 66)
Remove the RTC battery:
1. Position the base enclosure, with the front toward you.
Component replacement procedures 73