i5-7600k How much voltage?

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FirstNewbie

Commendable
Mar 29, 2017
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So I've decided to overclock my Cpu (yes this is my first time) to 4.2Ghz (going with intels recomendation this time) .

My question is, how do I decide what voltage is needed or what voltage would be recomended at that speed?

I have the Noctua NH-U9S CPU cooler.

Thank you :)
 
Solution
bicycle_repair_man
How long is a piece of string?

The best way to start is to leave the voltage on auto and make a note of what it is. From there, keep decreasing it until your computer crashes or fails a stress test.
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FirstNewbie

Commendable
Mar 29, 2017
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Alright that sounds good, but lets say it crashes at 1.100, do I crank up the voltage to ca 1.105 and leave it or do I go higer. Im not realy sure how the voltages work, I assume the cpu is not maintaing a constant voltage use? So how do I make sure it has enough juice for when it needs it?
 
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bicycle_repair_man

bicycle_repair_man

Splendid
Jan 10, 2014
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If it crashes then revert back to the last stable voltage and run an extended stress test; 30 minutes is about right. If it crashes during this then increase the voltage again.

Essentially, you're using trial and error to find out how low you can get the voltage whilst maintaining stability.
 
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F

FirstNewbie

Commendable
Mar 29, 2017
23
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1,520


Hi, yeah at 4.5ghz I found my CPU crashing at 1.75v but ran stable at 1.90v for 1h on aida 64xtreme. But all cpus are different so results may vary. But around 1.85-1.2v is optimal for 4.5ghz I think:)
 
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flicah

Prominent
Jun 27, 2017
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520


Ah ok, thanks. Yeah im on an i5 7600k 4.2ghz at 1.2v, which i think I could lower for better temps, so will try lowering.
 
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