What's a good temp range to keep your CPU at?

[Pemalite]

Depends on the CPU.

In saying that, there isn't any risk to your system, CPU's will thermal throttle before they incur any damage... That technology has existed since the Pentium 4 with Intel, Athlon 64 with AMD.

Also... Again, depending on your CPU you may actually need to set an offset, so your temperatures may have been higher or lower than 84'C... I.E. The old AMD Phenom 2's had a 13'C offset, so if you hit 60'C you were actually 73'C.