Specifications

RTC battery
Description Spare part number
RTC battery 741976-001
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 27).
5. Remove the following components:
a. Top cover (see
Top cover on page 29)
b. Power button board
c. Display assembly
d. Speaker assembly
e. Hard drive (see
Hard drive on page 42)
f. System board
Remove the RTC battery:
1. Position the system board upside-down.
2. Use a thin screwdriver or similar tool to pry the battery out of the socket (1).
Component replacement procedures 47