Overclocking i7-3770k - Excessive Heat even with 212 Hyper Evo

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amanfr01

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Oct 1, 2014
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Hello!

I'm having some temperature problems when it comes to OC'ing, even with a 212 Hyper Evo. My CPU is an i7-3770k and my case is a Corsair 450D. Look at the following images:

http://i.imgur.com/4YbxMqx

http://i.imgur.com/sPh68Pt

The first one was when I attempted to OC to 4.4, after dropping it down from 4.5. The voltage I was using to ensure stability was 1.25v. The second image is trying it at 4.0 with a 1.185v.

I have unseated and reseated the Hyper Evo 5+ times, and I can guarantee I'm not doing anything out of the ordinary/improperly. What are your thoughts on this? I would like to OC more than just a 4.0ghz with my system; it's why I bought the 212 Evo in the first place.


 
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4Ryan6

4Ryan6

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Apr 14, 2002
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Those are common results with a 212 EVO, that is not a high performance air cooler it is a cheap cooling solution, and your i7-3770K will laugh at the EVO attempting to cool it.

I have a 3770K myself (CPU-Z validated to the right), but it is not being cooled by an EVO but by chilled water cooling, I am not suggesting you go that far but at least get a better cooling solution than an EVO.

 
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CompuTronix

CompuTronix

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Nov 13, 2006
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Sorry, Ry ... that was intended for amanfr01.

I can just make out in his first screenshot image in the bottom line of Prime95 that it's showing AVX, so can't be 26.6.

amanfr01,

Do NOT run any versions of Prime95 later than 26.6. Here's why:

Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.5, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

Prime95 v26.6 produces temperatures on 3rd and 4th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a 35% larger Die.

Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot.com/2011/04/prime95-266.html

Run only Small FFT’s for 10 minutes.

Use only Real Temp to measure your Core temperatures, as it was designed specifically for Intel processors.

Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.5.

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT :sol:
 
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