HP ProBook 5330m Notebook PC Maintenance and Service Guide

RTC battery
Description Spare part number
RTC battery 650398-001
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 37).
5. Remove the service access cover (see
Service access cover on page 39).
6. Remove the keyboard (see
Keyboard on page 52).
7. Remove the fan (see
Fan on page 55).
8. Remove the top cover (see
Top cover on page 57).
Remove the RTC battery:
1. Position the computer right-side up, with the front toward you.
2. Use a thin, nonconductive tool to release the clip that secures the battery to the system board.
3. Remove the battery.
To install the RTC battery, press it down into the socket until it is seated.
66 Chapter 4 Removal and replacement procedures