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CMOS Settings

W

Wolfeymole

#1
Ok here's the deal.

For long enough now when I have had a power outage I have had to re-set the time, date, no floppy drive attached etc.
I thought it may have been the battery failing.
On a normal shutdown and boot up all would be ok.

Anyway I replaced the battery two weeks ago and I have just had a power cut again and the same thing happens.

Any ideas guys?
 

Tony D

Free PC Help Long Term Member
Joined
Dec 30, 2007
Messages
704
Location
Malvern, PA (USA)
PC Experience
Some Experience
Operating System
OSX
#2
Sure sounds like the CMOS battery. Could you have replaced it with another bad battery? Maybe the contacts are bad. Maybe a circuit board run to the battery is bad.
 
W

Wolfeymole

#3
As I say Kelly the battery or batteries, as they came as a pair in a blister pack, were brand new with an expiry date of 2010.

Time/Date etc keep perfectly well otherwise.
 

Seth

FPCH Long Term Member
Joined
Dec 17, 2007
Messages
2,268
Location
Canada
Operating System
Windows Vista - Home Premium
#4
I've posted about this issue before on another forum.

I've experienced it a few times when a computer comes in my shop, and when it's returned. For whatever reason, some mobo's charging circuit requires AC power at all times.