As an average user, I wouldn't pay too much attention to the temperature readings, as long as they are wihtin a reasonable range. In your case it looks nornal, ie., higher when start executing something. Run sisoftSandra "burn-in", see what will happen. If it remains operatable, fine! Sisoft does test overall performances of everything. Prime95 continuously strains the CPU, ram, chipset. I don't believe that M/B manufacterers use higher grade temperature senser chip, so we should't expect such high precision, just relative figures. Mine temperature readings range between low 30 to low 50 deg. C for system temp. and mid 40 to low 60 for CPU(never goes beyond 64 C during Prime95 with ambient temp. at 29). These are quite high compared to what people report in this forum, but since I have it run without a hick, fine!