CPU reaching 79 degrees with water cooler?

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PCLover1996

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Nov 22, 2014
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My brother helped move all of my pc parts to a new NZXT H440 case the other day and i wanted to see how the temperatures were doing using CPUID HWMonitor.
So while the GPU (gtx 1080) looked fine while playing games with reaching a max temp of 70 degrees and hovering from 60-65 the CPU (i7 4770k) would often be at 70+ with a max of 79 degrees while using Corsair H75,should i be worried and maybe getting a new cooler?

https://imgur.com/a/gEWKp
 
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devbiker
It's hard to say. You haven't really supplied enough information to analyze what your overall thermal environment is like. You need to look at it as a single, interrelated system, not as merely individual parts.

Here's the thing: when you're gaming, that GTX 1080 is dumping a ton of heat into the system. Sure, it's temps look "fine" but that just means that it's cooling and that hot air has to go somewhere.

Is your H75 set up for intake or exhaust? If exhaust (which is the most common), that means its using system air to cool the liquid. If that is getting up to 40 or 50C, then it's going to limit how much the liquid can be cooled which, in turn, will limit how effectively it can cool your CPU. Do you know what the case...
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devbiker

devbiker

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Dec 9, 2017
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It's hard to say. You haven't really supplied enough information to analyze what your overall thermal environment is like. You need to look at it as a single, interrelated system, not as merely individual parts.

Here's the thing: when you're gaming, that GTX 1080 is dumping a ton of heat into the system. Sure, it's temps look "fine" but that just means that it's cooling and that hot air has to go somewhere.

Is your H75 set up for intake or exhaust? If exhaust (which is the most common), that means its using system air to cool the liquid. If that is getting up to 40 or 50C, then it's going to limit how much the liquid can be cooled which, in turn, will limit how effectively it can cool your CPU. Do you know what the case interior temperature is? How about ambient temperature in the room? All of those things are factors that play into the equation. And, unfortunately, the H75 doesn't provide any sensors for you to see what its liquid temperature is.

With all of that said, 79C certainly isn't ideal but it's also not going to kill your CPU. A different/bigger cooler will give you better cooling and also help with airflow but you'll still need to manage your entire thermal environment effectively for it to do so. And more recent AIO coolers from many of the major vendors (Corsair, NZXT, others) will provide temperature sensors, pretty fine-grained control over the fan speeds, and fan speed control tied to coolant temperature that you won't have with the H75
 
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