RTC battery
Description Spare part number
RTC battery not spared
Before removing the RTC battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 35).
5. Remove the battery (see Battery on page 37).
6. Remove the WLAN module (see WLAN module on page 38).
7. Remove the memory module (see Memory module on page 40).
8. Remove the hard drive (see Hard drive on page 41).
9. Remove the solid-state drive (see Solid-state drive (SSD) on page 43).
10. Remove the fan assembly (see Fan assembly on page 44).
11. Remove the system board (see System board on page 52).
To remove the RTC battery:
▲
On the bottom of the system board, use a thin tool or screwdriver to disengage the battery from the
socket (1), and then remove the battery (2).
Reverse this procedure to install the RTC battery.
Component replacement procedures 55
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