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45nm cpus were not the issue and should be same, it was the 65nm tjmaxes which made no sense as they suggested core temps 15C below IHS temps. These are a little better for 65nm....but it still does not explain 95C IHS temp on a E6850 GO at DTS=0 with tjmax 90C. And Q6600 B3 stepping measuring 85C IHS at DTS=0 with a tcase max of 62C versus Q6600 G0 measured 95C IHS at DTS=0 with tcase max of 71C, so no way am I buying they have the same tjmax. Though the Q6600 B3 90C tjmax makes sense based on E8400's tjmax of 100 and measuring at DTS=0 95C IHS temp and 97-98C top of die temp when drilled though IHS (both cases suggest a 5C higher core temp than IHS at idle, low volts, which is plausible, heat cant go from IHS to core as would be suggested by some of the other still too low 65nm tjmaxes).
If those are correct tjmaxes for 65nm, then unlike 45nm, many still have 5-10C absolute temps higher than tjmax from DTS sensors being "individually calibrated to avoid throttling below tcasemax". But the inconsistencies still seem fishy.
Last edited by rge; 11-11-2008 at 04:57 PM.
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