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CMOS battery failure

By AliceDinGA ·
How long should a CMOS battery last? What are some symtoms of battery failure? How do you determine appropriate replacement (part no., etc.)? Where can you obtain new battery? What procedures to follow in replacing battery?

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CMOS battery failure

by dmiles In reply to CMOS battery failure

The battery life is estimated at 5 to 10 years
Battery failure
Computer Clock loses time
Error messages refering to an error in the Computer CMOS configuration
Chksum error messages
The battery is located on the motherboard,a silver round piece,it can be replaced easily by pushing it down and sliding it foward toward the front
You will need a 3 volt battery for replacement and the part number is on the battery
Before removing open the CMOS control panel and write down the configuration info,once removed you will lose configuration,if you have the manual of the motherboard it is enough,just follow the setup for each screen.

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CMOS battery failure

by AliceDinGA In reply to CMOS battery failure

The question was auto-closed by TechRepublic

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CMOS battery failure

by asjwm2 In reply to CMOS battery failure

The CMOS battery is like a quartz watch battery. It runs the clock. Learn how to look in your BIOS (basic input output system). After you see the brand name of the computer come up, then right after it goes off, hit Ctrl Alt f7 or f8 to display your system BIOS. It will have info that you might want to know, including the CMOS configuration. You want to write that down. Then take your box cover off after disconnecting the cables. Find the little watch battery on the motherboard. Press downand slide it out. Take it with you to the electronics store and buy another. Put it back in, reboot, reset the BIOS and the clock, and you're good for another few years. If you have problems like this, what I did was to remove all the screws on the box cover and put 'em in a bag and tape them inside the box somewhere. I went through a phase where I was always having to look at the innards of the thing and didn't want to take out 10 screws every time...

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CMOS battery failure

by AliceDinGA In reply to CMOS battery failure

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CMOS battery failure

by meddjay In reply to CMOS battery failure

The other two must be youngsters...heh, they either have forgotten or don't work on older computers...because some of the cmos batteries are soldered in. You can still take em out, some harder than others, but it can be done. When you do take out a cmos battery of any kind do exactly what they said about writing the information down. You may not need it but it is better to have it than not. The error message you would normally get is just exactly that, a cmos error. You might get others, depends on your computer. As far as life expectancy, well how long does your watch battery last or even your electronic phone book? About the same amount of time. Look for slowing of time kept on your computer and things like that. Hope this helps! :)

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CMOS battery failure

by AliceDinGA In reply to CMOS battery failure

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CMOS battery failure

by AliceDinGA In reply to CMOS battery failure

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