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Overclocking Intel i7-4790k How much it too much voltage?

Brighttail
Level 11
Hey all,

So I popped in a new Processor today and it booted up quickly at 4.8Ghz with a voltage of 1.39v. Now it wasn't stable past the first 20 minutes of Prime but my temps were 60C tops. My question is that is a lot of volts passing through that CPU. Even at 4.6 the motherboard sets it at 1.3v for stable.

My question is how many volts is too much for these new i7-4790k's? I don't want to kill the lifespan of the CPU, but I don't think heat will be an issue. I did throttle it back to 4.7Ghz with the same voltage, top temp was 56C and i ran Prime95 for 2hours.

I could change the block to 102 and keep the clock at 47 and see how it runs.. Suggestions? What limits should I not push with this chip?

Thanks.
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3 REPLIES 3

Mosc_007
Level 7
4.8 Ghz is a very high overclock for this CPU. I would try not use more than 1.30 volts to limit degradation. Maybe even slightly lower is better. The last one I setup was 1.28 Vcore at 4.6 Ghz.


Charles
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abvolt
Level 11
I agree with 007 my z97 rig using the same cpu is running at 4.6 with a vcore of 1.285, the highest i've gotten is 4.9 at 1.455 but I would not recommand running that high of a vcore for long, fast degradation is a big worry for me..
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Christy
Level 7
agree with uperstair...+1