Case might be overheating my CPU and GPU?

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Paddyward

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Oct 26, 2013
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Hey guys
I have recently upgraded my CPU from an i5 4690k to and i7 5820k, and in doing so needed to upgrade my cooler. I purchased an HN-D15S hoping that it would cool my system because it is one of the best coolers available, but my CPU is still reaching about 70 degrees when I stress it, without an OC. I thought that I would be able to get a lower temperature, but I never reach 100% CPU usage with the 5820k, so I do not mind too much but I would like to OC at some point. My other concern is that because my CPU is getting so hot, and the fan on the NH-D15S is on full power because of this, my GPU is also geting very hot. When it is at full load, it is about 70 degrees, and when it is at like 1 - 2% usage, it is about 50 degrees, which I am worried about. I am starting to think it might be my case that is overheating my hardware, as back of my GPU is about 2 cm away from one of the heatsinks on the NH-D15S, which may be why my GPU is overheating. Also, my case is the CiT Spectre White.
What do you guys think? Is my case the cause of this, or is there something wrong with the cooler/CPU?
Thanks guys
 
Solution
Ecky
550w is plenty for your system; you could probably run it on 300w. However, if the PSU can't breathe, the fan will struggle to cool it. There's no hardware monitor to tell you how warm it is, but you can probably get a rough idea by putting your hand on the side of it.
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First of all, what are you using to stress it? And what version?

In case you happen to be using Prime95 ver 28 (or Linpack), that's most likely the problem.

I guess that, since you are not yet overclocking, your voltage (VID/Vcore) is on AUTO/adaptive right now, right? That would be another likely reason (when stressing, the voltage can go quite high when auto)

That case, at first sight, seems to be fine. Do you have any case fans placed anywhere?
 
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Thanks for your replies guys.
Yes, I am using Prime95 v28. Is this not very good software to use? And also yes, all my voltages etc are set to auto because I haven't changed anything in the BIOS, yet.
I don't have any other fans installed in the case, but I have a few around. I will install them tommrow. So far I have taken off the lid of the case and it has decreased the temp by a few degrees, but not much.
The reason that I think it is the case is that - this might be a stupid reason - the entire case is getting really hot, which makes me think that it is restricting it from releasing the heat. Just a thought.
Again, thanks for your replies
 
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If your case is getting hot, then yes, you would get lower temps with more airflow. However, running Prime95 only indicates what your temps will be when running Prime95. I would recommend instead that you use your PC normally and keep an eye on things. Try to keep the CPU under 80-85c and the GPU under perhaps 80-90c and you'll be fine.
 
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Prime95 v28 is exteremely hot on Haswell chips, so that temperature would be acceptable for that particukar program. But it is an unrealistic load which doesn't make sense.

Also, especially with Prime95 v28, the voltage can rise to dangerous level if left on auto. It is NOT recommended to stress test on auto; even less with Prime95. And high voltages also contribute to high temps.

If you want to stress, Aida64 is a very nice program whit close to realistic loads, and it lets you monitor temps in real time graphs.

I support stress testing, it is a quick way to check for stability on overclocks, to watch temperatures on a controlled scenario, and to compare effects of frequency/voltage changes with repeatability.
I don't recommend using extremely stressful tests (like Prime95 v28 or Linpack), nor stress testing for hours at a time.
 
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For thermal stress tests the best to use is prime95 v26.6. It's the only app that applies a realistic constant 100% load on the cpu. Aida64, IBT, OCCT etc all have varied loads so you end up with spiked maxes of 100% and a lower average temp. For OC stability testing, use Asus ROG stress test, as this is a system wide test involving gpu, cpu, ram, drivers, instruction sets etc.

Btb, 70°C using p95 v28 is actually a very good temp on a Haswell cpu since anything after 26.6 uses unrealistically high amounts of AVX instructions resulting in massive over normal temps. It's not uncommon for v28 to put Haswell cpus close to if not above 100°C with a stock or budget cooler.

How are your case fans controlled? Through the built in fan controller or by the motherboard? Are you positive the D15 is mounted correctly, nice and tight to the cpu? Do you have room on the side panel to mount a fan there as exhaust?
 
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Thanks for all of yours answers. I have added two extra fans to the case and I have taken a part of the case off that allows more airflow. I tested with AIDA, and I get about 50 degrees on load, which is perfect. The only problem that I still have is the sound, it is still very loud when I play CPU intensive games, such as WoW even though the CPU only reaches about 40 degrees. However, this is not much of an issue as I can change some of the locations of the fans or even change where I keep the desktop to a bit further away. Thanks for all of the replies
 
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Thank you for your reply.
I have changed the fan settings in my bios to silent mode, and it is a lot quieter. However, when I play WoW they are still very loud. It is strange - I stability test the CPU in AIDA and get about 55 degrees, which is good and the fans are not very loud at all. However, once I start to play WoW, about a minute or two in my CPU is at about 40 degrees, but my fans are going crazy, and are even audible with my headset on and in game sounds on.
Is this normal?
Again, thanks for everyone's replies.
 
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Thanks for your reply, I will have a look around to see if there is a solutuion.

It might be your video card fan. What card do you have?
Click to expand...

Thanks for your reply aswell, my graphics card is the GTX 970, and it is also getting very hot. At idle it is at about 60 degrees, and when I am playing WoW it is at about 73 degrees. I assumed that because the CPU was getting really hot, the heat couldn't escape my case and so was heating up my GPU aswell.

UPDATE: Okay, this is quite strange... I have lowered all of my graphics on WoW down to minimum, and now the fan is running normal again. Same CPU usage, same temperature, but my GPU is now on 20% usage instead of 100%, maybe you are right, this does have something to do with my GPU?

UPDATE 2: I have tested my stressed my GPU using Furmark, and when the GPU is at 100% usage the fans are very loud. However, when I listen to it closely, it seems as though the fan noises are coming from my PSU. My PSU is the XFX PRO 550W (https://www.scan.co.uk/products/550w-xfx-core-edition-p1-550s-xxb9-80-plus-bronze-1x135mm-fan-atx-psu) and the fan for the PSU is at the bottom of the case, pretty much covered up by the bottom of the case but with a slight opening for it to breath. Is there anyway for me to see how much my PSU fan is working? I am also worried if 550W is powerful enough to run the 970 and the i7 5820k together. I am just thinking out loud though.
Thanks
 
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550w is plenty for your system; you could probably run it on 300w. However, if the PSU can't breathe, the fan will struggle to cool it. There's no hardware monitor to tell you how warm it is, but you can probably get a rough idea by putting your hand on the side of it.
 
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Solution


Thanks for your reply.
I felt the PSU, and it is warm but nothing to worry about at all. However, I can confirm that is is the PSU fan that is making the noise, and only does so when the graphics card is at full load. Does this sound like a dead PSU? I don't remember it doing this before, the NH-D15S upgrade, as I have been able to play WoW before on ultra settings without it making this noise. Very strange.
Thanks again
 
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The XFX TS/PRO are very good psus and will be more than enuff for a gtx970 at a huge OC, i7-5820k at massive OC, 64GB ram at max OC plus every fan slot filled, and as many hdd as you could cram into the case, all running at full load capacity. And still have room left over. It's fan should not be ramping up under a game like WoW, which is mainly cpu oriented due to online activity and other players on the server. At max settings you'd should be lucky to see 60% load on cpu and 80% gpu if using 4k rendering through GeForce Experience. At a max of @360w for cpu/gpu you'd be looking at closer to about 300w-340w for the entire system, not a hard stretch for that psu at all. It's actually right at peak efficiency if anything. So something is blocking airflow, dirty screen, feet not tall enough, fan exhaust blocked in rear etc.
 
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Yep, you guys were right. I have flipped my PSU over so that the fan is facing up, and allowing a better airflow. I have stressed the GPU and CPU at the same time, and have tried playing WoW. It is now pretty much silent. I have had this case for quite a bit of time, and it has only recently started to do this. But now it is fixed, thanks for all of your help. I will be selecting Ecky as the best answer, but I wish I could select multiple answers as best answer, because everyone has helped me a lot.
Thanks guys
 
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You are most welcome. Glad to see its working. Flipping the psu topside is often advantageous in cases with inadequate exhaust because much of the gpu heat can be absorbed by the psu and exhausted out the rear. While initially this may sound counter-productive, reality is that with case air temps being lower, the cpu and gpu both have greater access to cooler air, lowering temps further. In your case it's a win-win situation.
 
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