Clock Speed Not Max During Stress Test

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gerdeman6141

Commendable
Nov 18, 2016
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So I am new to overclocking and I have been running Prime95 to test stability. When I up the multiplier to 42 on my intel 6700k it only hits 4Ghz on the stress test. During benchmarks it will go to 4.2Ghz. When I up the multiplier to 43, it only hits 3.9Ghz during stress test, but will hit 4.3Ghz during benchmarks. Here are some screenshots of the core speed and temperatures. Is there something I am missing?

https://www.flickr.com/photos/147884751@N05/shares/31Sz6Z
 
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gerdeman6141

Commendable
Nov 18, 2016
14
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I thought the same thing. I bumped up the voltage to 1.2V and it still is not exceeding 4Ghz. The voltage is also not going up to 1.2v. It is staying around 1.15v. I feel like I am setting up the stress test incorrectly. Here is a screen shot of CPUZ after I bumped up the voltage to 1.2 with the multiplier set to 42

https://www.flickr.com/photos/147884751@N05/shares/n55K3G

Oddly enough the voltage stays at 1.2v when idle.
 
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PC-4LIFE

PC-4LIFE

Respectable
Nov 14, 2016
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The voltage drop isn't a problem, don't worry about that.

I can't think why that's happening.
If your temperatures are very high, I suppose it could be thermal throttling.
Use Intel Extreme Tuning Utility while stress testing, it will show temperatures, usage, everything you need to know really.

 
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