Stress Testing problem

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3vangelica

Honorable
May 20, 2014
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10,520
I recently purchased a new CPU as my last one overheated. I spent a long time cleaning my PC in the process. I put it all back together and ran a Prime95 stress test. Within 15 minutes the Overall core temp in HWMonitor reached 75c and the CPUTIN was showing 95c. I immediately stopped the test.
I took the heat-sink off, presuming this to be the problem, and reseated it (Cleaning and reTIMing it first).
I redid the test with exactly the same results. Overheating within 15 minutes.

My specs are:

ASUS P8Z77-V LX (MoBo)
Intel Core i7 2600k @ 3.4Ghz (CPU)
AMD HD6950 2Gb (GPU)
Kingston HyperX Genesis 8Gb @ 1600Mhz (RAM)
Corsair TX Series 850 Watt (PSU)
Noctua NH-U12P (Cooling)

Any help would be gratefully received.

Okay, with it being an ASUS MoBo I've decided to install ASUS AI Suite II. Right now I'm running the test again and HWMonitor is showing 65c while AI Suite is showing 38c. Which one should I trust?
 
Solution
geofelt
Your parts are good and you are not overclocking.
Is this test inside a case?
Does the case have adequate airflow?
Preferred is intake in front and bottom, exhaust at rear and top.
Take the side covers off and direct a fan at the innards and see if you do better.
Your 6950 is a relatively hot card and could be heating up the cooling air feeding the cpu cooler.


I am not certain that you have a problem.
The chip can reach 100c before it will downclock to prevent damage.
Prime 95 may not be a good test. Try OCCT which stresses in a different way.
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geofelt

geofelt

Titan
Oct 9, 2006
54,388
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174,240
Your parts are good and you are not overclocking.
Is this test inside a case?
Does the case have adequate airflow?
Preferred is intake in front and bottom, exhaust at rear and top.
Take the side covers off and direct a fan at the innards and see if you do better.
Your 6950 is a relatively hot card and could be heating up the cooling air feeding the cpu cooler.


I am not certain that you have a problem.
The chip can reach 100c before it will downclock to prevent damage.
Prime 95 may not be a good test. Try OCCT which stresses in a different way.
 
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Solution
3

3vangelica

Honorable
May 20, 2014
22
0
10,520
Yes inside a case. I have an NZXT Phantom full tower, can upload pic if necessary. I have a 140mm intake at the front. 2 120mm Intakes on the side and a 230mm intake on the side. A 120mm exhaust at the back and 2 200mm exhausts on the top.
While running the Prime95 test the GPU is idling at 35c.
 
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geofelt

geofelt

Titan
Oct 9, 2006
54,388
4,187
174,240
At idle, your cooler should be about 15c. above ambient.
If it is not, there is a problem.
Either the fan is not running or the cooler is defective(unlikely, but possible)

Noctua comes with low noise adapters which slow down the fan speed. Are you using one of them?
 
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