Thats the other thought i had. How many Intake and exhaust fans do you have? and is the heatsink working properly
Dont run Avast in safemode, load up windows when it comes to the loading screen hold the shift key untill windows is fully loaded. then run the scan.

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R.I.P My Brother, J.M.S
USAF 1Lt, Computer/Network Tech
Air Force Security Forces
Comp Specs
CPU: Intel Core i7-965 Extreme Edition 3.9GHz
motherboard: Intel X58
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