I gotta side with Bill here: the placement of the temp probe within the die is more than likely creating a difference: it'd be hard not to. What's missing is a compensation/adjustment factor, for actual CPU temp readings, and that's where pHaestus' excellent work comes in.
I like that idea Les. I also fail to see the relevance of the Zig-Align. The only problem is that if either surfaces (die or block) are convex, the results may vary.
My original plan was to use 4 calibrated springs, and a "normal" 4 bolt hold down. Hadn't given the socket clamp much thought, yet. What spooks me in this whole thing, is having a clamp system that flexes against the springs, thereby lowering the actual pressure applied. Now if this clamp was calibrated before hand, maybe.
Maybe it's time for an air suspension... I'll ponder this some more.
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