I have an Athlon FX60. Whats a good temp for it? Right now it idles at 45C.
Perfectly normal because CPU temp depend of what's running in the case, what kind of case, case venting, ambient temperature,... all that we don't know, so we cannot answer.
but 45 is nothing serious. if you end up seeing 65 under load, then you could start to wory, but only if you have instability because you have no means to know if the sensor is accurate anyway...
So I would say forget about it and enjoy if there is no other problems..