Rtc Battery, Hp 455 Models - HP ProBook 450 G2 Maintenance And Service Manual

RTC battery, HP 455 models

Description
RTC battery
Before removing the RTC battery, follow these steps:
On HP 455 models, you access the RTC battery without removing the system board.
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
5. Remove the following components:
a. Service doors (see
b. Hard drive (see
c. Optical drive (see
d. Keyboard (see
e. Top cover (see
Remove the RTC battery:
1. Using a flat tool, pry the battery out of the socket (1).
2. Remove the battery from the socket (2).
Reverse this procedure to install the RTC battery.
Battery on page 36).
Service door on page
Hard drive on page 39)
Optical drive on page
Keyboard on page 49)
Top cover on page 58)
37).
43)
Component replacement procedures
Spare part number
738824-001
61