Recently I discovered that my system clock was slowing down. I got a new CMOS battery and replaced the one already on the motherboard. Both of the batteries seemed to have good voltage with a tongue test. However, two days after I re-synchronized the clock over the internet, I have lost 9 minutes and 15 seconds.
Does anyone know what could be causing the problem? I read in another question that the Real Time Clock crystal might be at fault, does that seem to be the case here?
Custom built machine with a Gigabyte GA-770TA-UD3 motherboard and a AMD Phenom 955 BE @3.2GHz running Windows 7.