Question Bios resets to default settings when I plug out the power cable

LukaNyan

Distinguished
Oct 9, 2015
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So every time I take out the power cable (or turn it off using the button), or when there's an electricity blackout the bios resets the RAM speed to 1333 mhz instead of 1600 and the fan set themselves back to standard mode instead of silent mode.
I have a Asrock H87 Pro 4.
Do you know what can cause this?
I'm thinking that maybe the CMOS battery is dead or almost, but I'm not sure as I never experienced anything like this before. Thank you!
 
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