RTC battery
Description Spare part number
RTC battery (includes cable and double-sided tape) 665733-001
Before removing the RTC battery, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service door (see
Service door on page 47).
5. Remove the battery (see
Battery on page 49.
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Slide the battery out from the bottom cover (2), and then remove the battery (3). (The RTC battery is
attached to the base enclosure with double-sided tape.)
3. Remove the RTC battery.
Reverse this procedure to install the RTC battery.
ENWW Component replacement procedures 67
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