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RTC battery
Description Spare part number
RTC battery 649769-001
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 following components:
a.
Remove the battery (see
Battery on page 43)
b.
Remove the service access cover (see
Service access cover on page 44)
c.
Remove the keyboard (see
Keyboard on page 55)
d.
Remove the top cover (see
Top cover on page 60)
Remove the RTC battery:
1.
Disconnect the RTC battery cable (1) from the system board.
2.
Gently pull the battery away from the double-sided tape that secures the battery (2) to the system
board and remove it from the computer.
Reverse this procedure to install the RTC battery.
Component replacement procedures
65