Log NR200 with Alpenföhn Black Ridge and 140mm side mounted intake fan.

Ameubius

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Feb 18, 2021
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Just wanted to present my little build with the NR200.





The Alpenföhn Black Ridge is cooled by a 140mm fan drawing air from the outside. I've also made a custom duct to guide the air and step down from the 140mm fan to fit the cooler. A smaller 92mm thin Noctua fan contributes to spread the air further on the underside of the CPU cooler. This system ensures that hot air from the GPU won't heat up the motherboard area too much. Both the two 120mm top fans and the 92mm rear fan pulls hot air out of the case.




I've offset the fan about 20mm from the side bracket, as I believe this reduces air turbulence and noise somewhat. I also swapped the Noctua fan in the pictures with a Arctic P14 with higher static pressure.

Made a shallow "duct" to guide fresh air form the bottom directly to the GPU fans, thus avoiding recycling hot air form inside the case.



I'm thinking about blocking off the mesh of the rest of the side panel, because some hot air escapes and is pulled in by the CPU fan. At least the lower part closest to the GPU vents?


Components:

ASRock Z490M-ITX/ac
Intel Core i5-10600K
Alpenföhn Black Ridge
ADATA XPG SX8200 Pro 2TB
Corsair Vengeance LPX DDR4 3600MHz CL18 2x16GB
Cooler Master V850 SFX Gold
ASUS ROG-STRIX-RTX2080TI-O11G-GAMING - OC Edition


The system runs rather quiet and the temps seem fine, but I can try stress testing more and post the results here if anyone should be interested?
 
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tinyitx

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I'm thinking about blocking off the mesh of the rest of the side panel, because some hot air escapes and is pulled in by the CPU fan. At least the lower part closest to the GPU vents?

The system runs rather quiet and the temps seem fine, but I can try stress testing more and post the results here if anyone should be interested?
Maybe you can just do a simple test by using some Scotch tape and paper to block off part of the mesh to investigate any potential thermal benefit. In reality, unless the GPU exhaust is pulled right back in to feed the CPU, the thermal benefit might be small (~1-2C) as those exhaust would be thermally diluted by surrounding ambient air. Surely, no harm to try.

Regarding the temp, would you mind checking the M.2 SSD please? (ambient, idle and load temp). Thanks.
 

Ameubius

Caliper Novice
Original poster
Feb 18, 2021
24
11
Maybe you can just do a simple test by using some Scotch tape and paper to block off part of the mesh to investigate any potential thermal benefit. In reality, unless the GPU exhaust is pulled right back in to feed the CPU, the thermal benefit might be small (~1-2C) as those exhaust would be thermally diluted by surrounding ambient air. Surely, no harm to try.

Regarding the temp, would you mind checking the M.2 SSD please? (ambient, idle and load temp). Thanks.
I'll se what I can do. The M.2 SSD gets what I believe plenty cooling via the CPU cooler placed directly above, but perhaps you think the closeness to the GPU backplate will heat it up more than ideal?

Good idea using tape to investigate the possibel effect of the GPU venting hot air into the CPU cooler. Though i also think the effect will be maginal.
 

tinyitx

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Jan 25, 2018
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I'll se what I can do. The M.2 SSD gets what I believe plenty cooling via the CPU cooler placed directly above, but perhaps you think the closeness to the GPU backplate will heat it up more than ideal?

Good idea using tape to investigate the possibel effect of the GPU venting hot air into the CPU cooler. Though i also think the effect will be maginal.
Yes. I had a NH-U14S (Edit: NH-C14S) blowing air down to the M.2 SSD (which also sits next to a 2070 with a back plate). The cooling benefit was definitely there but was not as much as I had hoped for.

One thing is that the bend of the heat pipes, sort of, blocked a good portion of the air reaching the M.2 SSD (I could not tell clearly from your pics that you have the bend at the lower side or at the upper side...but it looks like it is at the lower side, thus, blocking the air).
The second thing is that the fins of the cooler run parallel to the M.2 SSD, thus downward air does not really running towards it.

So, checking the idle and load temp with respect to the ambient air temp might be useful.
 
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Ameubius

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Feb 18, 2021
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Yes. I had a NH-U14S blowing air down to the M.2 SSD (which also sits next to a 2070 with a back plate). The cooling benefit was definitely there but was not as much as I had hoped for.

One thing is that the bend of the heat pipes, sort of, blocked a good portion of the air reaching the M.2 SSD (I could not tell clearly from your pics that you have the bend at the lower side or at the upper side...but it looks like it is at the lower side, thus, blocking the air).
The second thing is that the fins of the cooler run parallel to the M.2 SSD, thus downward air does not really running towards it.

So, checking the idle and load temp with respect to the ambient air temp might be useful.
I checked the bend orientation of the heat pipes, and they are not placed above the SSD. As I recall the SSD temps looked fine when running Time Spy earlier, but I did not try to stress test the SSD. I'll give it a try though.
 

Ameubius

Caliper Novice
Original poster
Feb 18, 2021
24
11
Yes. I had a NH-U14S blowing air down to the M.2 SSD (which also sits next to a 2070 with a back plate). The cooling benefit was definitely there but was not as much as I had hoped for.

One thing is that the bend of the heat pipes, sort of, blocked a good portion of the air reaching the M.2 SSD (I could not tell clearly from your pics that you have the bend at the lower side or at the upper side...but it looks like it is at the lower side, thus, blocking the air).
The second thing is that the fins of the cooler run parallel to the M.2 SSD, thus downward air does not really running towards it.

So, checking the idle and load temp with respect to the ambient air temp might be useful.
Ok, I did test the system using Furmark to stress the GPU. The room temp was 23°C.
CPU and GPU ran at stock settings.

Locking all fans, except the GPU fans, to 50% ended up with these results: MOBO 49°C, CPU 60°C, SSD 38°C, GPU 63°C, GPUmem 77°C.

I then blocked off the part of the side panel exhausting hot air from the GPU, and re-run Furmark with the same settings: MOBO 45°C, CPU 52°C!!, SSD 35°C, GPU 64°C, GPUmem 78°C.

Increasing the top fans to 100% only resulted in minor changes: MOBO 45°C, CPU 52°C, SSD 35°C, GPU 63°C, GPUmem 77°C.

Increasing all fans to 100% (except the GPU, which follows the stock fan curve) gave these results: MOBO 41°C, CPU 51°C, SSD 32°C, GPU 63°C, GPUmem 78°C.

I also ran Cinebench at 100% fan speed: MOBO 39°C, CPU 78°C, SSD 36°C, [GPU 31°C, GPUmem 43°C].

The most interesting was the marked drop in CPU temp when blocking the hot air form the GPU entering the CPU cooler.

I did not bother stress testing the SSD since I never run this part of the system that hard anyway, and 38°C max when fully stressing the GPU is plenty good in my books.

Needless to say, I'm going to continue blocking of that side panel.

Cheers :)
 
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Ameubius

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Feb 18, 2021
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Ok, I did test the system using Furmark to stress the GPU. The room temp was 23°C.
CPU and GPU ran at stock settings.

Locking all fans, except the GPU fans, to 50% ended up with these results: MOBO 49°C, CPU 60°C, SSD 38°C, GPU 63°C, GPUmem 77°C.

I then blocked off the part of the side panel exhausting hot air from the GPU, and re-run Furmark with the same settings: MOBO 45°C, CPU 52°C!!, SSD 35°C, GPU 64°C, GPUmem 78°C.

Increasing the top fans to 100% only resulted in minor changes: MOBO 45°C, CPU 52°C, SSD 35°C, GPU 63°C, GPUmem 77°C.

Increasing all fans to 100% (except the GPU, which follows the stock fan curve) gave these results: MOBO 41°C, CPU 51°C, SSD 32°C, GPU 63°C, GPUmem 78°C.

I also ran Cinebench at 100% fan speed: MOBO 39°C, CPU 78°C, SSD 36°C, [GPU 31°C, GPUmem 43°C].

The most interesting was the marked drop in CPU temp when blocking the hot air form the GPU entering the CPU cooler.

I did not bother stress testing the SSD since I never run this part of the system that hard anyway, and 38°C max when fully stressing the GPU is plenty good in my books.

Needless to say, I'm going to continue blocking of that side panel.

Cheers :)
My main concern is that the CPU perhaps runs a little hot when fully stressed? 78˚C with fans at max speed is somewhat higher than I had hoped. Could it be issues with the mounting pressure? Does anyone have experience with the 10600K + Apenföhn combo? The mounting mechanism for the cooler is’nt ideal with screws thightend from the back side. I think I’ll see if I can get some nylon washers and re-mount the cooler.
 

tinyitx

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Jan 25, 2018
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Are you blocking off the red part in the pic?
If yes, where does the GPU exhaust go? I am a little confused...lol

 

Ameubius

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Original poster
Feb 18, 2021
24
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Are you blocking off the red part in the pic?
If yes, where does the GPU exhaust go? I am a little confused...lol

Apparently the exhaust just finds its way out via the fans at the top and rear, as well as through the vented part of the panel at the other side. The GPU temps suffers about 1 degree though. And yes, I blocked off that part as well as the part above that didn't cover the intake of the CPU cooler, basically all except the CPU intake.