Is there a reason, other then keeping the clock current while it's powered off, that a desktop computer would need a battery? I'm getting indications that my battery is running low, but when the clock started getting slow, I downloaded an atomic clock that corrects the time every hour. Since my desktop computer is always plugged in, do I really need to buy another battery?
2007-02-05 21:11:20 · 8 answers · asked by Barry R 1 in Computers & Internet ➔ Hardware ➔ Desktops
The BIOS settings for your PC are not stored in the system memory or hard disk. Instead, they are stored in a special reserved memory area that is commonly called the "CMOS Memory". A battery provides backup so that the settings are not lost when the PC is turned off or unplugged. Unfortunately, certain situations can cause the CMOS memory to be erased or settings lost; usually this can happen when the battery fails due to some sort of malfunction, or merely because the motherboard is getting old.
It makes sense therefore to back up the information in the CMOS memory on occasion. Under normal circumstances, the battery will last for quite a while, and most regular PCs keep their BIOS settings intact for years at a time. This means that the CMOS does not need to be backed up at nearly the frequency that regular data does. In fact, once you have created your initial backup (which you should do when you set up your PC), all you need to do is change the backup whenever you change the settings themselves, to make sure the backup is current.
2007-02-05 21:21:33 · answer #1 · answered by Anonymous · 1⤊ 0⤋
There is a CMOS battery on the mobo, it is about the size of a U.S. quarter. This holds a small bit of memory to keep the computer's time, day, and date accurate. The CMOS battery normally last for 7 years.
2007-02-05 23:44:07 · answer #2 · answered by mittalman53 5 · 1⤊ 0⤋
Desktops have a CMOS battery, to keep the clock running and they sometimes do need replacing
2007-02-05 21:19:50 · answer #3 · answered by Anonymous · 2⤊ 0⤋
Other than keeping the clock current there is no need for bbatteries.
If you do turn off your computer you do need to get that coin cell battery, it's $1 anyway, just go get it.
2007-02-05 21:19:47 · answer #4 · answered by Andy T 7 · 1⤊ 0⤋
Desktop Computers do not require batteries.
2007-02-05 21:16:35 · answer #5 · answered by Titan 4 · 0⤊ 3⤋
Desktop computers dont use batteries. at least none that i've ever seen.
2007-02-05 21:14:58 · answer #6 · answered by brian3692001 2 · 0⤊ 2⤋
I frequently spend my half an hour to read this blog's posts daily along with a mug of coffee.
2016-08-23 17:13:10 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Just buy a UPS and you will get nice backup of power
2016-05-23 22:56:18 · answer #8 · answered by Anonymous · 0⤊ 0⤋