> >> How hot does the cpu have to get before one should be > >> worried? Usually, if you dig deep enough into the intel or amd chip maker's web site, you can find technical docs with temp and power specs for any given model CPU. A good rule of thumb might be "somewhat cooler than the max temp in the specs". Of course that leaves you needing to discover the exact model cpu you have as well as determine the meaning of "somewhat" :-).