I have a Windows 7 desktop PC with Gigabyte 880GM motherboard purchased sometime in 2013. Off lately I noticed that the system clock somewhat lags behind the actual time by about 5 - 10 minutes over a period of 2 - 3 days.
Obviously I suspected it to be weak BIOS battery and I replaced it with a Sony 3V CR2032 battery. The last time I changed it was sometime in 2015.
Despite putting in a brand new battery I am getting the same result. After about 2 - 3 days the system clock runs behind by about 5 - 10 minutes.
Note that in Windows settings it's just set to the correct region and my region does not observe any Daylight Saving just in case it matters. Also auto sync with Internet time option is Off.
Did I get a duplicate non genuine battery or does it mean that the clock chip on my board is now failing? I am also going to buy a relatively more expensive Duracell CR 2032 just in case that would matter.
Is there anything else I can try to attempt to fix this?
Thanks.
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