[SOLVED] 5900x High Load Temps with Noctuna DH-15

[hoh323152]

Hi, I have just started using a new build of around 2 weeks old and am experiencing pretty high temps while gaming, with most non graphically intensive games CPU temp stays around 50c but once I play a newer game, it will jump and sit around 80c-90c. It is showing this high on both Ryzen Master and Open Hardware Monitor. Is this normal, I've seen other people with the same cooler and CPU run much cooler than my system does. I have reseated the CPU and cooler once already and applied kryonaut thermal paste and did not see much of a difference in temps either idle or under load. Idle temps are around 40-50 and my ambient is 22-25c. I've seen lots of threads saying that these temps are normal and okay, just concerned if my CPU and Cooler combo should be running lower.

Build Spec:
Cooler Master MasterBox MB530P w one added top fan - Case
B550 AORUS PRO AC - Mobo
Ryzen 9 5900x -CPU
Noctuna DH-15
EVGA 3080 FTW3 - GPU
EVGA GT 850 GOLD - PSU

 

[Phaaze88]

Do you have a desk fan or box fan around?
Airflow test:
Remove side panel, aim the fan inside the PC on high speed, and play the games.
Compare thermals from before.

PBO is disabled?

Open Hardware Monitor

HWINFO. Monitor sensor labed CPU(Tctl/Tdie).

 

[dwd999]

Hi, I have just started using a new build of around 2 weeks old and am experiencing pretty high temps while gaming, with most non graphically intensive games CPU temp stays around 50c but once I play a newer game, it will jump and sit around 80c-90c. It is showing this high on both Ryzen Master and Open Hardware Monitor. Is this normal, I've seen other people with the same cooler and CPU run much cooler than my system does. I have reseated the CPU and cooler once already and applied kryonaut thermal paste and did not see much of a difference in temps either idle or under load. Idle temps are around 40-50 and my ambient is 22-25c. I've seen lots of threads saying that these temps are normal and okay, just concerned if my CPU and Cooler combo should be running lower.

Build Spec:
Cooler Master MasterBox MB530P w one added top fan - Case
B550 AORUS PRO AC - Mobo
Ryzen 9 5900x -CPU
Noctuna DH-15
EVGA 3080 FTW3 - GPU
EVGA GT 850 GOLD - PSU

The website says your case hold 3 120mm fans on the front and 3 120mm fans on the top. So you need to add 5 more fans with the 3 in front blowing in and the 3 on top blowing out. You can't cheap out on fans when you're spending that much on a cpu and gpu.

 

[Phaaze88]

3 on top blowing out

The OP does not need to do this if they're looking for lower cpu thermals. Fans(exhaust) directly above and in front of a tower air cooler serve to steal air away from them; they are capable of drawing air not just from the front, but the top as well.
That setup is to the benefit of open air gpus(when in use) dumping their waste heat inside the PC .

 

[KyaraM]

The website says your case hold 3 120mm fans on the front and 3 120mm fans on the top. So you need to add 5 more fans with the 3 in front blowing in and the 3 on top blowing out. You can't cheap out on fans when you're spending that much on a cpu and gpu.

This isn't a good generalized statement. I, for example, got 2 intake fans in front, one intake each above and on the side of the CPU, and then two exhaust in the back and the top behind/above the cooler. This was the best setup I found, after quite a bit of testing, adding and removing fans and then testing again over and over. Airflow isn't as easy as more fans = better.

The first step, though, is to open the side panel and test with HWINFO, as stated above. Also, check fan curves of all fans. If they are set too low, adjust them up. See how that goes.

 

[drea.drechsler]

The website says your case hold 3 120mm fans on the front and 3 120mm fans on the top. So you need to add 5 more fans with the 3 in front blowing in and the 3 on top blowing out. You can't cheap out on fans when you're spending that much on a cpu and gpu.

@hoh323152 Placing more fans for better case ventilation will probably help, but have to be careful how it's done as others have noted.

Putting three at top all drawing air up will only serve to draw the hot air exhausting from a very, very hot GPU right up to the intake of the CPU air cooler. A bit more discretion in the direction the fans blow might be wise. One configuration I've heard works (never tried this myself) is to put the front top fan blowing in, the rear two blowing out. The front/top fan works with the front fans to provide a good draft of cool outside air to the CPU cooler. The rear fan and rear/top fans are picking up the exhaust of both GPU and CPU while setting up an airflow that keeps it away from the front of the CPU cooler.

 

[geofelt]

40-50c. does seem to be a bit high at idle.
Look at the cpu fan profile in your bios.
You may want the fans to start a bit higher and to ramp up higher under load.
Of course, this will add a bit of noise.
You can add a 120mm front fan to the NH-D15, but I would not bother.
Tests show perhaps 2c. better; not much worth it.
You got that benefit from using Kryonaut vs the supplied noctua paste.
The cost was risk from electrical conducting paste.

Your case is a good one for case cooling.
Try disabling the top fan.
It is directing some of the front aiflow out the top before the cooler, motherboard, and graphics card can benefit.
A top exit fan will also tend to draw in unfiltered air from adjacent openings, reducing the cleansing effect of front mounted filtered intakes.

 

[dwd999]

@hoh323152 Placing more fans for better case ventilation will probably help, but have to be careful how it's done as others have noted.

Putting three at top all drawing air up will only serve to draw the hot air exhausting from a very, very hot GPU right up to the intake of the CPU air cooler. A bit more discretion in the direction the fans blow might be wise. One configuration I've heard works (never tried this myself) is to put the front top fan blowing in, the rear two blowing out. The front/top fan works with the front fans to provide a good draft of cool outside air to the CPU cooler. The rear fan and rear/top fans are picking up the exhaust of both GPU and CPU while setting up an airflow that keeps it away from the front of the CPU cooler.

I can't see this working. It seems to me that the air drawn in by the top front fan would immediately be drawn to the top back fans since they create a low pressure area. I don't see it travelling downward enough to feed the cpu cooler. In addition with most cases nowadays having vented slot covers for the unused slots on the back of the case so if you have sufficient fans in the front of the case blowing in they would help move the hot air from the gpu fans out the back of the case through those slot covers.

 

[drea.drechsler]

.... I don't see it travelling downward enough to feed the cpu cooler...

As I see it, the CPU cooler fan, if right below it, should also be drawing briskly and creating a very large low pressure zone courtesy of the 2 x 140mm fans in cascade in the cooler (I assume @hoh323152 has his NHD15's set up as others are) and pull much more of the cool air into it. The high(er) pressure air from the front fans only adds to the volume available to the CPU cooler. If the front/top fan is turned to exhaust all it does is steal some of the cool air from the front that the CPU coolerneeds.

Again, I've not tried it but it makes some sense so long as set up right so it may need some balancing of fan speeds. It would certainly be worth a try since nothing's permanent.

 

[TerryLaze]

Up to 90-95 is normal for ryzen if it is set for automated boost just like 100-105 is normal for intel under automated boost.
If you want lower temps just disable turbo/pbo and live with the barely if at all noticeable difference in performance.
Hand tuning an overclock would be the best option but the hassle is not worth it for most people.

AMD views Ryzen 5000 CPU temperatures up to 95C as ‘typical and by design’

Higher temps mean Zen 3 can boost higher and longer.

www.pcgamer.com

 

[Viking2121]

Yeah my 5900x with the NH-D15 with 1 fan runs cooler than that in fact with PBO set to +200mhz and playing with a voltage curve I still run cooler, I do have 2 fans on the front on my case 1 at the rear and 1 top fan as exhaust.

R23 I peak in the low 80s, but its rare it gets into the 70s during gameplay.

Have you set your fan profiles? In the thermal paste covering the entire CPU? Is it vary hot in the room its in?

Sometimes a GPU can dumping heat in the case from playing a game can cause the CPU to heat up, I do have 2 bottom fans on my case so the heat doesn't stick around long in my case.

Is it the same without the side panel?