Rtc Battery - HP ProBook 450 G3 Maintenance And Service Manual

RTC battery

Description
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. Optical drive
c. Hard 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. Use a tool to pry the battery out of the socket (1).
74 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Battery on page 34).
Service doors on page
(Optical drive on page 37)
Hard drive on page 39)
Keyboard on page 48)
Top cover on page 53)
System board on page
35).
71)
Spare part number
826388-001