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RTC battery
Description Spare part number
RTC battery 686922–001
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 display panel (see
Display panel on page 32).
5. Remove the base enclosure (see
Base enclosure on page 34).
6. Disconnect the battery cable (see
Battery on page 36).
Remove the RTC battery:
1. Use a thin, non-conductive tool to remove the RTC battery from the socket on the system board.
NOTE: Use a thin, non-conductive tool to remove the RTC battery from the socket on the
system board.
2. Hold down the media card reader board (2), and remove the RTC battery (3). (The RTC battery
is also attached to the system board by foam material rather than double-sided adhesive.)
Component replacement procedures 41