Water cooled 8700k high temps

Dec 24, 2018
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Hi, I have an NZXT water cooler in my machine, and my i7 8700k is oc'd to 5.2 GHz, but when it is stressed it gets over 90C, which as far as I know is way higher than it should be, as its water cooled. When I lowered it to its turbo (4.7 GHz) its stressed temps dropped to 85C, which as far as I know is still warm. It idles at 45C as well, I'm not sure if that is normal or not.
 

shknawe

Respectable
Oct 22, 2016
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Well 5.2ghz is really pushing up the temps on that most overclock it to 5ghz. The only thing you can do is use more aggressive fan cooling curve on the water cooler. Do it manually, try a manual setting like pump on high performance and fan speed to match temps ie 50c 50 %, 60c 60%, but when you get to 70 c I have my fans set to 100 %fan speed
 

shknawe

Respectable
Oct 22, 2016
1,288
45
2,490
140
Well 5.2ghz is really pushing up the temps on that most overclock it to 5ghz. The only thing you can do is use more aggressive fan cooling curve on the water cooler. Do it manually, try a manual setting like pump on high performance and fan speed to match temps ie 50c 50 %, 60c 60%, but when you get to 70 c I have my fans set to 100 %fan speed
 
Dec 24, 2018
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I have my fans set to 100 as soon as it hits 65, any other suggestions? I will restart and go into BIOS to find voltage in a minute.
 
Dec 24, 2018
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1.375v, I don't know what cooler model, its a 120mm NZXT cooler

 
Dec 24, 2018
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I am probably going to get a new 240mm cooler is a corsair H100i good or should I get a different one?
 

shknawe

Respectable
Oct 22, 2016
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H115 is 280mm cooler if you can fit it. I can't guarantee the h100iv2 at 240mm will cool your 8700k at 5.2ghz. It has the highest fan speed if you don't mind the fan noise it probably be ok..
 

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