3. Slide the memory module forward (2) to remove it.
Reverse this procedure to install a memory module.
RTC battery
Description Spare part number
RTC battery 697917-001
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 65),
5. Remove the optical drive.
6. Remove the top cover from the base enclosure (see
Base enclosure on page 70).
7. Remove the WLAN module (see
WLAN module on page 86).
8. Remove the system board (see
System board on page 95).
Remove the RTC battery:
1. Turn the system board upside down.
Component replacement procedures 105
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