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Took 4 hours to find a bad CMOS battery in a Dell Optiplex

I had a Dell Optiplex 3020 that would power cycle randomly every 10 minutes, swapped the PSU, RAM, and even the motherboard before I finally checked the CMOS battery voltage at 2.8V. A $3 battery replacement fixed it after I wasted a whole afternoon on parts swapping. How long did it take you to learn to check the simple stuff first?
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3 Comments
matthews21
matthews2127d ago
Why didn't anyone tell me a dead battery could fake a hardware failure like that?
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wendy_jackson
Had the exact same thing happen with a Dell 790. Spent two days swapping parts before I noticed the date kept resetting to 2005. Dollar store battery fixed it, felt like an idiot after all that work. Always check the cheap stuff first now, learned that lesson the hard way.
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the_john
the_john25d ago
Funny how the simplest fix always makes you feel the dumbest.
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