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

RTC battery, HP 450 models

Description
RTC battery
On HP 450 models, you must remove the system board to access the RTC battery.
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
5. Remove the following components:
a. Service doors (see
b. Hard drive (see
c. Optical drive (see
d. Keyboard (see
e. Top cover (see
f. System board (see
Remove the RTC battery:
1. Position the system board upside-down.
2. Using a flat tool, pry the battery out of the socket (1).
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)
System board on page
37).
43)
78)
Component replacement procedures
Spare part number
738824-001
83