mother board out of battery?

Recently, my computer went into a weird problem. Whenever I login the operating system (Windows XP, by the way), the clock is set to start form 00:00.

I tried to fix the time in Windows by adjusting the date and time property, but the system went back to the abnormal state each time I rebooted.

Then I took another try by modifying the clock setting in BIOS. This time, the time appeared to be right after times of rebooting. But after I turned off the computer, cut the power, waited for ten minutes or so, and turned on the computer again, the time was zero again.

By the way, each time after POST, a line would prompt showing that my CMOS configuration was not correct, and the login process would stop unless I pressed ESC to restore the CMOS setting into the default values.

I turned to others for help. Some one told me that the battery on my mother board was out.

Do you think this is where the problem really lies?

Thanks.

 

Yes

 

Sounds like classic "dead battery ".

If you have not opened a case before, it is not hard to replace. Once you have taken off the cover, you just have to find it on the motherboard. It should be (silver) button type and you just have to carefully lever it out (make sure all power is disconnected and try not to touch any of the electronics).

If you cannot find a button type battery, it could be another type (which Rockster2U could help you find, if he is around).

Let us know how you go.

Matt

 

shouldnt the 5VSB take care of the battery?

I thought the RTC would run from it and use battery when unplugged.

 

stuartsjg, yes, for ATX power systems. The battery should not run down unless it is disconnected from the power source. Different on the old AT power systems, they turned off the power to the motherboard when the machine was shut down thus using the battery. (This is the way I understand it.)

Of course, if the PC has been put in storage for any lenght of time it will run down.

Matt