HP 240 G6, Maintenance And Service Manual

Page: 66 / 108

RTC battery
Description Spare part number
RTC battery 746439-001
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 30 ).
5. Remove the optical drive (see Optical drive on page 31 ), if installed.
6. Remove the bottom cover (see Bottom cover on page 37 ).
7. Remove the system board (see System board on page 56 ).
To remove the RTC battery:
1. Position the system board upside down.
2. Using a thin tool, disengage the battery from the socket (1), and then remove the battery (2).
Reverse this procedure to install the RTC battery.
58 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts