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Originally posted by UnloadeD
He's comparing cpu to temps inside his case, not ambient. This could throw a big wrench into the equation. I can see how it would be possible to get a cpu reading lower than case temp reading. Whether or not the readings are correct is a different story. My cpu is always reported at 6C above my case temps. A lot would have to do with airflow in the case and where the temp sensors are located.

peace.
unloaded

Yeah, when doing C/W formulas for my system (not just block) I've always been heavy on lowering CASE ambient, cause that really effects the starting temp point at which your radiator is, meaning if your radiator is outside case, then it's naturally going to be cooler than in case, which makes sense, but inCASE units suffer from latent heat from HD's, mobo, and chipsets etc... And like me, most people have their's barely fitting underneath some hot spinning 7200's, plus the incoming air cools only the internals of the HC/Rad and all that latent heat around the HC/Rad just sits and bakes it like an oven... Most ppl say that it's negilable heat increase, but I've recorded differing results...?

One note; when I'm doing C/W temps I usually don't include pump heat, should I (Der?!) eg: XP 1600@1814/1.792Vcore =
~85.323W.

38Cmax - 24.5Camb = 13.C, 13.5C/85.232 = .158

35Cidle - 24.5Camb = 10.5C, 10.5C/85.323 = .123 (hehe)


W/Pump Watts added: (~10W)

38Cmax - 24.5Camb = 13.5C, 13.5C/95.232 = .142

35Cidle - 24.5Camb = 10.5C, 10.5C/95.323 = .110

Note these may not be totally accurate, but for estimates sake...