Rtc Battery - HP Compaq Presario,Presario V3501 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 (includes 2-sided tape)
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 from the computer by first unplugging the power cord from the AC outlet and
3.
then unplugging the AC adapter from the computer.
Remove the battery (see
4.
Remove the hard drive cover (see
5.
Remove the RTC battery:
Disconnect the RTC battery cable (1) from the system board.
1.
Remove the RTC battery (2).
2.
Reverse this procedure to install the RTC battery.
54 Chapter 4 Removal and replacement procedures
Battery on page 46).
Hard drive on page 47).
Spare part number
417076-001