I am at stock voltage with mine, but even when it's at default 3.33Ghz, my temps don't change at all. Which makes sense, as the voltage is the same.

Intel recommend a max temp of 72.4c, so in order for me not to exceed that temp, I have to set 70c as the shutdown temp in my BIOS, as the next step is 75c, which exceeds the max recommended temp...

I want to return this thing, but I think the egg will send me another from the same batch... I want my 3rd to be a keeper

Maybe it is the Q820A*** batch. Seems likely to me that some don't have such good IHS's or there is some sort of manufacturing defect.

I mean right now, as I type this, with cpu usage at 0-3%, my ambient temp in the room is 75f or 24c, and the E8600 is idling at 47c. That is with a lapped TRUE, a very flat IHS, AS5, and a fan pushing 103cfm through the TRUE.

But sure, the egg will pull through again for me, I hope.