Temp difference between 2 different Q6600's

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Joined
30 Jan 2004
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817
Location
Milton Keynes, Bucks
Hi all

I sold an old Q6600 G0 a couple of weeks ago due to not being a very good overclocker, it needed 1.39v to get to 3.1ghz. So bought one to replace it which had a vid of 1.250 thinking i would run cooler and need less volts for at least 3.2ghz.
The problem is I have noticed the temps are higher with less volts:

Set up
Both run with the same cooler (freezer 7rev2) and As5 thermal compound

new one 1.275@3ghz 71-72c under prime
old one 1.38@3ghz 70-72c under prime

Is there a reason this is so vastly different?
I have tried applying the As5 via blob and spreading with no effect to temps, and set the hsf to run full speed. I also checked the cooler is mounted correctly.

So am I best off replacing the cooler with something more meaty or is there something i have missed?

Thx
 
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