Rtc Battery - HP ProBook 4310s Maintenance And Service Manual

Removal and replacement procedures

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. Hard drive (see
b. Memory/wireless module compartment cover (see
c. Optical drive (see
d. Keyboard and switch cover (see
e. Palm rest (see
f. Display assembly (see
g. Top cover (see
h. System board (see
Remove the RTC battery:
1. Turn the system board upside down, with the audio connectors toward you.
2. Disconnect the RTC battery cable 1 from the system board.
3. Detach the RTC battery 2 from the SD Card Reader. (The RTC battery is attached to the SD Card Reader with
double-sided tape.)
Reverse this procedure to install the RTC battery.
4–54
"Battery" on page
"Hard drive" on page 4-9)
"Optical drive" on page
"Keyboard and switch cover" on page
"Palm rest" on page 4-25)
"Display assembly" on page
"Top cover" on page 4-36)
"System board" on page
4-7).
"WLAN module" on page
4-18)
4-27)
4-47)
Spare part number
581926-001
4-12)
4-20)
Maintenance and Service Guide