i7 4790k heat

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Reckerbro

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Jul 13, 2014
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Hey guys im from the UK and as of now it's pretty dam hot lol i don't know what the ambient temp is in my room as i don't have anything to check. Currently the Temp in the UK is 23C - 74F.

While idling its around the 40oc mark and when im playing Arma 3 it goes to 60-61c which it's never done lol usually gets close to 50 and that's about it. I cleaned out my case today reapplied thermal paste artic silver mx-4 ( the pea method) same method i used before the UK received some heat. I'm just wondering if this is normal? I've done stress tests with OCCT and aida 64 and the temps are in the high 60's.

Is this normal for the weather being so hot? well and my room aswell.
 
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It may not be a true "bottleneck" in the sense that the CPU can't keep up... it may be that the program isn't optimized to use the full potential of the CPU, so the game engine in turn isn't running fast enough to push the GPU to its limits. I've seen this while playing Witcher 1 (from 2007!) and I'll get occasional FPS drops into the low 50s, even with a 4790K and GTX 1080. During those times, the GPU utilization is like 20%.

Anyway, it doesn't really explain the 70C on Arma 3's menu... honestly I wouldn't worry about it, but if you are really curious, you can probably get a better sense by running some apps to monitor your temps and GPU / CPU usage in...
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doggghouse

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Dec 26, 2013
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60C is not bad for the CPU... while overclocking my 4790K, I was watching for temps to stay in the low 70s during stress tests. Really, it can go as high as 90C before it starts to throttle down to protect the CPU. Also, certain stress tests will make the CPU abnormally hot, especially if they use the AVX instruction set. You'll never see those temps in real applications.

You could also check to make sure there's no dust buildup in your PC, especially on fans and heat sinks. But generally, the warmer your ambient temp, the warmer the PC components will run.
 
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Reckerbro

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Jul 13, 2014
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Yeah i know i cleaned out my PC today with a Metro Vac 220 electric duster. Cleaned all the fan's the case is as clean as a whistle made sure of it lol.

What is worrying is that i've got a h100i water cooler cooling it and still getting these high temps.

I know if the ambient in my room increases which it has but quite abit as i feels that the pc will run slightly hotter. When playing Arma 3 earlier it was around 58-60c then in the main menu it was at 70. I don't see how this sudden change of temp outside has made such a impact.
 
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Reckerbro

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Jul 13, 2014
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What you mean they're not hot temps? hitting 60c in a video game and going back to the menu and it hits 70c that's ridiculously high for this day of age especially with a h100i on top
 
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doggghouse

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Dec 26, 2013
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Sounds like Arma 3 is really pushing the CPU hard at the main menu... wonder what that's about? Probably during the actual game, the GPU is the bottleneck, so the CPU load is not maxing out. You could probably run a program in the background to see the relative GPU and CPU loads.
 
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photonboy

photonboy

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Jun 20, 2006
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Actually, the CPU is usually the bottleneck unlike most games. It gets really demanding but it only uses TWO cores really well so you can show low CPU utilization and low GPU utilization at the same time.

Of course it depends what GPU one has, but compared to other games it's much more likely to be CPU bottlenecked.
 
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doggghouse

Honorable
Dec 26, 2013
19
0
10,520


It may not be a true "bottleneck" in the sense that the CPU can't keep up... it may be that the program isn't optimized to use the full potential of the CPU, so the game engine in turn isn't running fast enough to push the GPU to its limits. I've seen this while playing Witcher 1 (from 2007!) and I'll get occasional FPS drops into the low 50s, even with a 4790K and GTX 1080. During those times, the GPU utilization is like 20%.

Anyway, it doesn't really explain the 70C on Arma 3's menu... honestly I wouldn't worry about it, but if you are really curious, you can probably get a better sense by running some apps to monitor your temps and GPU / CPU usage in different scenarios, to figure out what's going on.
 
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photonboy

photonboy

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Jun 20, 2006
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Uh, if the GPU is waiting on the CPU then that's a CPU bottleneck. That's the very definition of a bottleneck. It doesn't matter that the game can't use all the cores the CPU has. It's still a CPU bottleneck.

As for the MENU, is VSYNC enabled?
If not, then it's still a very demanding CPU scenario because you may have less going on per frame but you pump out say 400FPS or something the CPU is still under heavy load compared to VSYNC capping the frame rate.

Some people force on ADAPTIVE VSYNC which for 60Hz monitors caps to 60FPS (VSYNC ON) but if you can't output 60FPS it turns VSYNC OFF automatically. It then creates screen tear but avoids stutter. (NCP-> manage 3d settings-> add game ... ).
 
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