Rtc Battery - HP Compaq Presario,Presario F500 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:
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
1.
computer on, and then shut it down through the operating system.
Disconnect all external devices connected to the computer.
2.
Disconnect the power cord.
3.
Remove the battery (see
4.
Remove the memory module compartment cover (see
5.
Remove the RTC battery:
Disconnect the RTC battery cable (1) from the system board.
1.
Remove the RTC battery (2).
2.
NOTE:
spare part kits include 2-sided tape.
Reverse this procedure to install the RTC battery.
34 Chapter 4 Removal and replacement procedures
Battery on page
The RTC battery is secured to the computer by 2-sided tape. All replacement RTC battery
29).
Memory module on page
Spare part number
431436-001
32).