bad checksum

BIOS Questions that don't belong in the other forums. Read them!
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superrrbop
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Posts: 3
Joined: Thu Jan 30, 2003 2:04 am

Hi

I got a problem with an old mobo. (pentium 233)
Everytime on boot it displays the following mess:

CMOS bad checksum error

Then i can press F1 and i get to BIOS.
I change time and date and save it.
Now it starts up and everythings workin fine now.

My guess is that the battery is dead.
Am i correct ??
Is there a difference in those battery's ??
(cuz i got some ole mobo's lyin around, so could i pry one off them ?)

Hope this is the right place for this post.
Already thnx
ajzchips
El cheapo dude
Posts: 3048
Joined: Sat Mar 23, 2002 12:41 pm
Location: Madrid, Spain

Typical symptom of a low/dead battery.
superrrbop
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Posts: 3
Joined: Thu Jan 30, 2003 2:04 am

Are there different battery's or are they all the same ???

Anyone ?
NickS
BIOS Bodhisattva
Posts: 3145
Joined: Fri May 03, 2002 10:34 am
Location: Thames Valley, UK

Batteries;
These days, usually a 3V coin-shaped Lithium battery, pretty much all the same - xx2032 ?

In the past - could have been 4.8V or 3.6V NiCd rechargeable soldered to the board, or 3V Lithium button cell integrated with the CMOS (Houston Tech/Dallas/Viking), or 6V battery pack plugged into the board on a long wire...
superrrbop
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Posts: 3
Joined: Thu Jan 30, 2003 2:04 am

thnx for the info all !!!

:D
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