CMOS battery?

  • Thread starter Thread starter NickySantoro
  • Start date Start date
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NickySantoro

Tried to fire up my back-up comp. Time settings won't hold and get
message that there is some sort of check sum error. Before I open it
up and replace the battery can anyone verify that this is the logical
starting point given the symptoms described?
 
A new battery will most likely fix both problems. Worst use scenario is a bad motherboard.
 
NickySantoro said:
Tried to fire up my back-up comp. Time settings won't hold and get
message that there is some sort of check sum error. Before I open it
up and replace the battery can anyone verify that this is the logical
starting point given the symptoms described?
Click to expand...

Definately sounds like the CMOS battery is dead - or the jumper is wrong or
missing.
 
Noozer said:
Definately sounds like the CMOS battery is dead - or the jumper is wrong
or missing.
Click to expand...

If you take out the cmos battery and measure the voltage you'll know quick
enough if that is the problem. Most of the cylindrical ones are usually 3.5
volts.
 
Jan said:
If you take out the cmos battery and measure the voltage you'll know quick
enough if that is the problem. Most of the cylindrical ones are usually 3.5
volts.
Click to expand...

3.0, mostly. For the coin cell type. It'll say how many volts on the
battery.
 
Many thanks for the responses. A new battery was the cure. Old battery
was original from about eight years ago and only showed 0.16 volts,
not the requisite 3 volts.
 
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