I have an A64 3000+ Winny running at 2.3GHz(256x9) at +0.1V and it is stable, ran Prime95 for over 8 hours, no problems. I have a XP-90 with a good 80mm fan (broke the 92mm retension rod, so stuck with an 80mm fan). At load, my temps max at 50* and at minimal load they are usually around 44*. Is this acceptable heat?