> Pentiums are no longer cooler than Athlons. Athlons used to be hot, but > the new Athlon XP's are just as cool as Pentium 4's. You can go to each > of Intel and AMD's web-site's and read the CPU specifications -- Athlon > XP's and P4's are within a few degrees of each other.
Athlons dissipate more heat than Pentiums, but they usually have better heatsinks to compensate for it. Toms Hardware Guide did some testing regarding CPU fans and did look at noise A Comparison of 46 CPU Coolers and Fans http://www6.tomshardware.com/cpu/01q2/010521/cooler-01.html noise results: http://www6.tomshardware.com/cpu/01q2/010521/cooler-30.html Of course, I'd check that mobo fan first. Could well be the problem.