Rtc Battery - HP Compaq 6730s Maintenance And Service Manual

RTC battery

NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all
passwords and CMOS settings to be cleared.
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. Optical drive (see
c. Switch cover and keyboard (see
d. Speakers (see
e. Display assembly (see
f. Top cover (see
Remove the RTC battery:
1. Turn the system board upside down, with the audio connectors toward you.
2. Remove the RTC battery from the socket on the system board.
Reverse this procedure to install the RTC battery.
80 Chapter 4 Removal and replacement procedures
Battery on page 50).
Hard drive on page 51)
Optical drive on page
Switch cover and keyboard on page
Speakers on page 66)
Display assembly on page
Top cover on page 74)
59)
67)
Spare part number
449137-001
61)