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 cover (see
Service cover on page 48).
5. Disconnect the battery.
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Pull the battery out from under the computer case (2), and then remove the battery (3) from
the base enclosure. (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.
Component replacement procedures
55
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