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13 answers

It depends on the mainboard.

Those with a backup capacitor to prevent loss of BIOS settings will suffer no changes.

Those without will loose anything from merely the date / time (dynamic data) to your personalized settings (static data).

Please refer to the manufacturer's website or provide us with the model / type of the mainboard or PC for a definite answer.

regards,
Philip T

2007-01-22 02:22:54 · answer #1 · answered by Philip T 7 · 1 0

1) Date and time will be lost and will revert to jan 1 1980 (with most BIOSes this is the default date & time).

2) The CMOS bios memory will forget your tweaks on almost all computers... it may be spotted as an invalid settings and the computer will go into the BIOS setup when you restart it. It may 'just' revert to the factory default settings. But unless you've got some very odd stuff in your computer it'll probably carry on working OK. Old computers might forget what disk drives they've got but modern ones autofind this info anyway. Some computers may use NVRAM for the bios and it will survive the battery being taken out... if there are then they may have a procedure involving jumpers or special keystrokes to wipe the BIOS settings intentionally.

3) On some (very few) the BIOS passwords will be lost as well. Most modern computers won't forget BIOS passwords.

4) The stuff on your disk drive will all still be there... but if the BIOS has forgotten your disk drive type it may not be able to read the disk anymore.

Don't do this with the mains on and the computer running. It won't forget anything but it may not work afterwards.

2007-01-22 02:23:44 · answer #2 · answered by bambamitsdead 6 · 0 0

Are you talking about the CMOS battery? This is a flat silvery looking battery in the middle of the motherboard. This operates the computer's time clock, the one you see in the lower right hand corner. If you remove the dead or dying battery and replace it with a new one (be sure the numbers match), all it will do is drop your day, month, year and time back to the original time the motherboard was initiated. You will have to reset this either in the BIOS or change it in the date & time properties by clicking on the time and opening the box. Be sure to reset the year, and the daylight savings time location (Pacific, Central, etc.)

2007-01-22 02:15:05 · answer #3 · answered by Anonymous · 1 1

It will not do anything to your OS or Data on the hard drive. It will however reset your BIOS to the default.
What are you trying to accomplish? That might be a better question.

2007-01-22 02:19:33 · answer #4 · answered by Mike 3 · 1 0

Nothing at all...

I've done this myself twice. I even removed the battery, started up my PC and then re-installed the battery. You don't lose any settings / programs.

2007-01-22 02:13:31 · answer #5 · answered by GH0$T 2 · 0 1

no longer something a lot,till U are doing it to verify workstation hardware or Ur battery is going kaput,the archives saved in ROM is lost,which holds memory of Ur hardware & date/time and so on,If U replace battery U have enter setup to circulate into all info of Ur hardware & date/time.

2016-11-26 01:57:01 · answer #6 · answered by Anonymous · 0 0

No - it will just reset your bios to default.

Well - it shouldn't anyway!!! But some pc's do have a tendency to be a bit rebellious.

You can read about what bios is here....

http://www.webopedia.com/TERM/B/BIOS.html

2007-01-22 02:12:40 · answer #7 · answered by riffyxraff 3 · 1 0

Probably, the clock time and all ur bios settings (including pass)

2007-01-22 02:13:08 · answer #8 · answered by Goanchu 3 · 1 0

No, the only thing the battery is used for is CMOS, which is the date and time on your computer.

2007-01-22 02:15:26 · answer #9 · answered by GuitarJammer 5 · 0 1

mother board 's setting(with the BIOS user pwd) and system time all will reset .

2007-01-22 02:13:37 · answer #10 · answered by madder 1 · 1 0

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