This is different for different CPUs but that seems reasonable. My AthlonXP1600+ runs at 50C and the motherboard reports around 37C. I don't game or do anything too intensive so I don't see the temp go up by more than 1 or 2C.
My Athlon XP2000+ usually runs at ~90-100°F, and spikes up to 115°F durring gaming. My system temp is normaly ~80°F.
I do have a well ventilated aluminum case with a monster Alpha HSF on my CPU though, so I'm not representative of the norm. I used 3 80mm 28db fans at ~20cfm, so everything is pretty quiet, but nowhere near as quiet as a large tier OEM machine. (Which are almost completely silent, but run hot.)
I used to have 36db fans running 27cfm, but the noise got really annoying. My CPU was down to 80°F, but wasn't worth the headache. :banghead:
I want my machine to run as OEM-quiet as possible, though so far its not quite there. I swapped the OEM AMD HSF with a PCP&C unit which made a huge difference. A 90mm Silencer in the fan space under the PS seems to help keep the Enermax dual-fan from running both fans at a higher speed.
I think the problem now is that the fan on the Northbridge is getting noisy. :thumbdwn: ASUS changed it to a passive heatsink on the followup model so I may do the same.
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