RTC battery
Description Spare part number
RTC battery (includes cable and double-sided adhesive) 734300-001
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 45).
5. Remove the service cover (see Service cover on page 47).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the base enclosure. (The RTC battery is attached to the base enclosure
with double-sided adhesive.)
3. Remove the RTC battery.
Reverse this procedure to install the RTC battery.
Component replacement procedures 55
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