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RTC battery
Description Spare part number
RTC battery (includes cable and double-sided tape) 637193-001
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 47).
5. Remove the service cover (see
Optical drive on page 49).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Slide the RTC battery (2) out from under the surface of the base enclosure.
3.
Remove the RTC battery (3) from the system board. (The RTC battery is attached to the system
board with double-sided tape.)
Reverse this procedure to install the RTC battery.
Component replacement procedures
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