RTC battery
Description Spare part number
RTC battery 697917-001
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 25), and then remove the following components:
a. Service cover (see Service cover on page 26)
b. WLAN module (see WLAN module on page 28)
c. Optical drive (see Optical drive on page 30)
d. Keyboard (see Keyboard on page 32)
e. Top cover (see Top cover on page 39)
f. Audio/USB board (see Audio/USB board on page 45)
g. Hard drive (see Hard drive on page 47)
h. System board (see System board on page 50)
Remove the RTC battery:
1. Turn the system board upside down with the front toward you.
2. Use a flat-bladed, non-metallic tool to release the RTC battery from the socket on the system board (1).
54 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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