I7 7700k with a bigger cooler, will it really help?

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Eknels

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Jun 4, 2017
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I am using an i7 7700k at only 4.5ghz.
My current cooler is a basic Corsair H75 AIO cooler, which keeps the temps between 33c Windows idle and 83c peak temperatures.

My question is: Those 80 + temps rise up in a second or two, and usually drops down fast back to 68-74c during heavy usage.
I have tried a slight OC but the temps go straight close to a hundred, and my concern is that if i will go with a 240mm radiator or good aircooler, will it really help at all, or do i need to start by delidding the whole thing and see how the H75 handles it? It feels like a bigger cooler would be a waste of money if before delidding.
I see the rapid peak temperatures being more of a TIM problem than the capability of cooling properly.
 
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True Buie

True Buie

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Aug 29, 2016
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Heyo Eknels

Going for a 240/280mm AIO or dual tower heatsink would help, yeah. But that chip is stupidly warm and the TIM doesn't really help either.
The 7700k already has a pretty hefty clock at stock. 4.5Ghz@1.2v or something along those lines. A single 120mm AIO isn't really able to cool that optimally. Deliding would of course make it much better. Pretty much all around we've seen 10-20 degrees lower temps after delid, but this also means no more warranty and the risk or killing the CPU. Yeah, we've got way better tools now for deliding, but the chance is still there.
If you have the chance then I'd say try and swap your current 120mm for a 240/280mm or dual tower heatsink to see if the difference is worth your money.

Cheers
 
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Eknels

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Jun 4, 2017
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510


Thank you for your answer.

Warranty is of course an important issue, and the H75 is obviously not for HC overclocking anyway.

The reason i originally suspected the TIM being a problem is because i believe the heatsink on my H75 is decently cooling and in contact despite this being a hot cpu, and also generally keeping a pretty steady temperature. That saying, bad TIM would let the CPU itself get unnecessary hot internally before the cpu heatspreader/heatsink cool it down (not enough time to react due to bad thermal conductivity in the original TIM) this causing unnecessary hot peaks.

I have learned 80c is still okay for a 7700k, but if i could achieve peaks around 69c MAX, i believe i could have a quieter system and if needed, maybe even OC a little keeping it at low 80's still within the safe zone.

The reason for not getting a 240mm straight away is my BitFenix mATX case with the GPU sitting upside down where the radiator would be.
 
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