RTC battery
Description Spare part number
RTC battery 449137-001
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 39).
5. Remove the memory module/wireless module compartment cover (see
WLAN module on page 48).
6. Remove the hard drive compartment cover (see
Hard drive on page 53).
To remove the RTC battery:
▲
Insert a screwdriver or similar small tool between the battery and the clip that secures it (1), pry the
battery up to disengage it from the socket, and then remove the battery (2).
Reverse this procedure to install the RTC battery.
ENWW Component replacement procedures 55
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