how hot is dangerous for my Q6600?

[gurpz1]

good to hear, ive just built my new rig after a couple of years and was just wondering about that slight difference. using a scythe mine atm, so may be due to contact and the lousy push pin system.

[Fraz]

I run all four cores at 100% for most of the time. The temp on Core1 is always highest and varies between 58 and 62. Probably down to the ambient despite having AC. This is on default voltage. I can't say that I've seen much diff in the temps caused by clock speed. Suspect that voltage is the key factor.

FYI - CPU power usage scales linearly with the CPU frequency, and scales with the square of the voltage. So, for example:

- a frequency increase of say 10% will result in 10% more power usage, and hence 10% more heat to dissipate.

- a voltage increase of 10% will result in 21% more power usage.

[Thorsson]

That makes sense, v^2/r I suppose. Of course temp increases won't match heat increases, as the change will depend also on the cooling. It does illustrate why you should use the lowest voltage possible.