The CPU fan plug on the mobo seems to have some sort of problem, it's only works at times. The temp was getting close 50c so I sut the thing off. I plugged the fan into the chassis plug and it runs fine, the only problem I see is the RPM's seem to very strange. Is this safe to use like this? I am running a P III 500 at 620 and the temp runs around 35c the way i'm set up.