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Intel DG33FB Motherboard CMOS battery drain issue.

My parents have this fairly old desktop with a core 2 duo cpu with 2 gigs of ram on top of an intel dg33fb mainboard. The problem with the machine is that quite often when the power is turned on, the bios throws a cmos battery failure warning and resets the time to 12:00AM 2006. I have tried replacing the battery, updating the bios firmware, restoring the bios configuration to default, but to no avail. Any help with this particular problem will be much appreciated.
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More about intel dg33fb motherboard cmos battery drain issue
  1. have you installed new CMOS battery the right way up (+ side face up)?
  2. Phillip Corcoran said:
    have you installed new CMOS battery the right way up (+ side face up)?


    Yes I did. Twice in fact. I'm really hoping to avoid some leaking capacitor on the mainboard.
  3. Best answer
    It's not impossible to buy a watch battery which is already nearly flat - - could be a bad batch or they've been on the shelf for years. Try a new battery from a different shop and if that goes flat quickly there is probably a faulty component on the mobo.
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