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RTC battery
Description Spare part number
RTC battery (includes cable) 651948-001
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. Disconnect the battery cable from the system board (see
Battery on page 39).
Remove the RTC battery:
1.
Disconnect the RTC battery cable (1) from the system board.
2.
Remove the RTC battery (2). (The RTC battery is attached to the system board with double-
sided tape.)
Reverse this procedure to install the RTC battery.
46 Chapter 4 Removal and replacement procedures ENWW