overclocking on i7-6700k causes high temperatures
overclocking on i7-6700k causes high temperatures
Hello everyone, I'm facing an issue.
I'm new to CPU overclocking, but GPU overclocking was straightforward. I have an i7-6700K and a cooler CM Hyper 212X. Initially, I attempted to overclock to 4.4Ghz with auto voltage, which worked well—just occasional freezes, mostly acceptable. Then I switched to 4.6Ghz and set the voltage to 1.35v, but it froze immediately when I started Prime95. I tried 1.40v and 4.6Ghz; the system ran for a few minutes, reached 80°C, then crashed (BSOD). I also experimented with 4.5v and 4.6Ghz, but temperatures spiked to 95°C instantly, causing me to stop it immediately. I'm unsure if the cooler is faulty or if my settings are incorrect. I aim for at least 4.6Ghz, preferably 4.8Ghz, and these freezes/BSODs seem random. If you have more details, please let me know.
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Tomie_
,
Do NOT run any versions of Prime95 later than 26.6. Here's why:
Core i 2nd through 6th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.9, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces
unrealistically high temperatures
. The FPU test in the utility AIDA64 shows similar results.
Prime95 v26.6 produces temperatures on 3rd through 6th 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 significantly larger Die.
Please download
Prime95 version 26.6
-...
Tomie_, Do NOT run any versions of Prime95 later than 26.6. Here's why: Core i 2nd through 6th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.9, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the utility AIDA64 shows similar results. Prime95 v26.6 produces temperatures on 3rd through 6th 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 significantly larger Die. Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot...5-266.html Run only Small FFT’s for 10 minutes. Use Core Temp to measure your temperatures - http://www.alcpu.com/CoreTemp Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.9. You might want to read this Sticky: Intel Temperature Guide - CT