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Ambients are definitely key on i7, cant wait til winter when I can bench mine with cool ambients. Though using A/C vent works too, it can get you down to teens in C.
You can pretty much gauge ambients by looking at RT minimum which usually = idle temp. Load TDP varies significantly chip to chip, idle watts however is similar just because 10-20% difference at idle is still only a few watts.
Stock, idle, power savings, undervolted the best you can get is about 6-8C over ambient on i7 with water, or ambient is RT minimum temp - 6-8C on most.
At 4.2 and 1.25vcore you will be idling at ~25W, and gradient will be >12C over ambient, or ambient is at least 12-14C below RT minimum temp.
At 4.5 and 1.42Vcore idle will be at ~50W and core temps at least 16C over ambient, or ambient is at least 16C below RT minimum temp.
Does not work perfectly as above in all...but it will be reasonably close.
Last edited by rge; 06-12-2009 at 08:46 PM.
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