[waynf]

Hi:

Is there any way to check the integrity of the CMOS battery?

Regards

Waynf

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Is your pc clock running slow? If it is then your battery needs changing

[doire]

Is your pc clock running slow? If it is then your battery needs changing

[waynf]

Its not running slow, but sometimes it registers at exactly one hour behind local time.

Waynf

[WinCrazy]

CMOS batteries last for a very long time. The computer will long be obsolete before a typical battery needs replacement. There is no way to test for a bad battery. You may just want to replace it if you are unsure - it may be defective, though I've never even heard of this happening. Be warned that you will probably have to go into the BIOS and change some default settings.

Edited by WinCrazy, 28 March 2006 - 12:28 PM.

[Neil Jones]

CMOS batteries last for a very long time. The computer will long be obsolete before a typical battery needs replacement.

My old computer was top of the range in 1996 and it still has its original CMOS battery.

It spent the best part of about six-nine months not having powered on at all and when I got round to using it again for backup reasons, the clock (which had been set right prior to its previous use) was less than five minutes out.

In theory a battery will last for up to five years. Take note though that the battery is only used when the system isn't powered on so if you have a system that's used all day every day, the battery will last a lot longer than it would if you only use the system once a month.