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post #581 of 1039
Quote:
Originally Posted by doyll View Post

My radiator/fan mounting tray has no fans and is not blocked off. I am now using 2x PH-F140SP front fans on fan hub controlled by motherboard PWM header and that is all. I use a rear exhaust for awhile but found the 2x front do the job just as well. I do not have a super high heat GPU (150w) so no issues with cooling. If I went with a high heat GPU and things were running too hot I would probably modify / add a bottom intake if need. I don't think it would be needed.

Yeah the 3x140 fans the case comes with are PH-F140SP's and I have them on the fan hub being controlled via motherboard PWM. I just wasn't sure it was enough.

Have you seen anyone do that mod for bottom intake on the Evolv ATX? Seems like that would require quite a bit of cutting because of the PSU cover.
post #582 of 1039
Thread Starter 
Quote:
Originally Posted by blackmesatech View Post

Yeah the 3x140 fans the case comes with are PH-F140SP's and I have them on the fan hub being controlled via motherboard PWM. I just wasn't sure it was enough.

Have you seen anyone do that mod for bottom intake on the Evolv ATX? Seems like that would require quite a bit of cutting because of the PSU cover.
The Evolv ATX PSU cover is vented so should be fine.
post #583 of 1039
Hey @doyll

Could use your air cool expertise for my upcoming HTPC build this week. Keep in mind the case isn't the greatest, but I really got stuck budget wise and couldn't afford a better case. This is what I had on hand.

Case: Recycled E-Machine EL-1352G Slim ITX.








Mobo: ASUS N3050T



Memory: Corsair DDR3 1600 8GB(4GBx2)
HDD: Transcend 64GB mSATA SSD
PSU: Dell 90W AC adapter
Optical: LG Blu-Ray combo drive SATA

Operating System: Windows 7
Software: Windows Media Center, Plex Home Theatre, Chrome

Most likely I can only get one fan positioned over the CPU attached to the side of the case. Is this my best option or do you see any other possibilities? I do think it's vented pretty well, however the tiny fan sitting on the CPU heatsink is my primary concern.
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post #584 of 1039
Thread Starter 
Quote:
Originally Posted by Dalchi Frusche View Post

Hey @doyll

Could use your air cool expertise for my upcoming HTPC build this week. Keep in mind the case isn't the greatest, but I really got stuck budget wise and couldn't afford a better case. This is what I had on hand.

Case: Recycled E-Machine EL-1352G Slim ITX.
Warning: Spoiler! (Click to show)






Mobo: ASUS N3050T



Memory: Corsair DDR3 1600 8GB(4GBx2)
HDD: Transcend 64GB mSATA SSD
PSU: Dell 90W AC adapter
Optical: LG Blu-Ray combo drive SATA

Operating System: Windows 7
Software: Windows Media Center, Plex Home Theatre, Chrome

Most likely I can only get one fan positioned over the CPU attached to the side of the case. Is this my best option or do you see any other possibilities? I do think it's vented pretty well, however the tiny fan sitting on the CPU heatsink is my primary concern.
Considering the Asus N305T uses a N3050 that has a TDP of 6 watts you are not making much heat at all. You won't need much if any extra airflow. I would put it all together and see what it does. Will a 120mm fan fit? How much room is there between case and top of CPU cooler? You might be able to use the CPU fan header to power a fan mounted to case vent instead of the stock CPU fan. Probably more more air and be quieter too. tongue.gif
post #585 of 1039
Quote:
Originally Posted by doyll View Post

Considering the Asus N305T uses a N3050 that has a TDP of 6 watts you are not making much heat at all. You won't need much if any extra airflow. I would put it all together and see what it does. Will a 120mm fan fit? How much room is there between case and top of CPU cooler? You might be able to use the CPU fan header to power a fan mounted to case vent instead of the stock CPU fan. Probably more more air and be quieter too. tongue.gif

There's the height of a full optical drive's worth. The motherboard only sits a total 25mm in height and the case is 99mm which leaves 74mm clearance. I do like the idea of using the CPU header, I think I'll have to wait and see how much noise the CPU fan makes when tortured. Also, I'll note the CPU temperatures as well.
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post #586 of 1039
Hello @doyll,

I changed the cooler in my HTPC from a Scythe Ninja II running semi-passive (only case exhaust near, not enough space to attach fan on it) to a downward Noctua NH-C12P

I'm using the standard fan orientation and CPU temps are very good (idle 35-40C, full load 50C) but I'm wondering if it would be worth it in my case to try the inversed fan orientation?

I'm willing mostly to help GPU temps (82C which is fine but a bit high), but bringing the CPU temps down a bit more would also be great.



CPU cooler : 140mm NF-A15 PWM running at 750-900 RPM depending on CPU temps
Exhaust fan : 92mm NF-A9 PWM running at 1400-1700 RPM depending on CPU temps
Intake at the front of the case : 120mm NF-P12 running at 900 RPM fixed

The case side panel has a 80mm-sized perforated area over the CPU (for old-school P4 ducts tongue.gif), and a 6x4" one over the GPU

My concerns/questions are :
  1. The PSU intake fan is very close and running much slower than the CPU fan, would I "starve" it if I were to pull air from it with the CPU fan?
  2. If I inverse the CPU fan, should I change the 92MM exhaust at the back to an intake?

Thanks !
Edited by equinoxe3d - 8/9/16 at 9:47am
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post #587 of 1039
Thread Starter 
Quote:
Originally Posted by equinoxe3d View Post

Hello @doyll,

I changed the cooler in my HTPC from a Scythe Ninja II running semi-passive (only case exhaust near, not enough space to attach fan on it) to a downward Noctua NH-C12P

I'm using the standard fan orientation and CPU temps are very good (idle 35-40C, full load 50C) but I'm wondering if it would be worth it in my case to try the inversed fan orientation?

I'm willing mostly to help GPU temps (82C which is fine but a bit high), but bringing the CPU temps down a bit more would also be great.



CPU cooler : 140mm NF-A15 PWM running at 750-900 RPM depending on CPU temps
Exhaust fan : 92mm NF-A9 PWM running at 1400-1700 RPM depending on CPU temps
Intake at the front of the case : 120mm NF-P12 running at 900 RPM fixed

The case side panel has a 80mm-sized perforated area over the CPU (for old-school P4 ducts tongue.gif), and a 6x4" one over the GPU

My concerns/questions are :
  1. The PSU intake fan is very close and running much slower than the CPU fan, would I "starve" it if I were to pull air from it with the CPU fan?
  2. If I inverse the CPU fan, should I change the 92MM exhaust at the back to an intake?

Thanks !
I would first try inverting the cooler fan and see what temps do. Back fan should stay exhaust. I would have both back and front fans on temp to speed curve so it supplies airflow as needed by CPU and/or GPU cooler fans.

Best way to know if CPU and GPU are getting cool air is to monitor the cooler intake air temp as shown in 2nd post of thread. 4th is how to setup case fans with CPU and/or GPU speed control. Many newer motherboards have sys fan headers that will control case fans this way too.
post #588 of 1039
Quote:
Originally Posted by doyll View Post

I would first try inverting the cooler fan and see what temps do. Back fan should stay exhaust. I would have both back and front fans on temp to speed curve so it supplies airflow as needed by CPU and/or GPU cooler fans.

Best way to know if CPU and GPU are getting cool air is to monitor the cooler intake air temp as shown in 2nd post of thread. 4th is how to setup case fans with CPU and/or GPU speed control. Many newer motherboards have sys fan headers that will control case fans this way too.

Not to hijack but I have a somewhat similar question after reading the link in your signature. So I have an NCASE and the plan is to have two intakes on the side bracket, one rear exhaust. With that being said would it be better to have the fan on the CPU cooler pushing air down on it or having it pull air off the mobo and cooler? I would think the first one would be better because of the orientation of the intake fans being right over it+. I can always test when I get the parts in but figured I would ask in the time being.
post #589 of 1039
Thread Starter 
Quote:
Originally Posted by cadger View Post

Not to hijack but I have a somewhat similar question after reading the link in your signature. So I have an NCASE and the plan is to have two intakes on the side bracket, one rear exhaust. With that being said would it be better to have the fan on the CPU cooler pushing air down on it or having it pull air off the mobo and cooler? I would think the first one would be better because of the orientation of the intake fans being right over it+. I can always test when I get the parts in but figured I would ask in the time being.
Basically the same answer as above. Try it and see which works best.
post #590 of 1039
Quote:
Originally Posted by doyll View Post

Considering the Asus N305T uses a N3050 that has a TDP of 6 watts you are not making much heat at all. You won't need much if any extra airflow. I would put it all together and see what it does. Will a 120mm fan fit? How much room is there between case and top of CPU cooler? You might be able to use the CPU fan header to power a fan mounted to case vent instead of the stock CPU fan. Probably more more air and be quieter too. tongue.gif

So I got everything installed and powered on. It sits idle around 25-27C and I didn't see it pass 29C when I was doing all the windows installs. thumb.gif I'll post some temps once I get Prime installed and run. Prime will decide if I have to replace the CPU fan with a 120mm screwed to the side vent. During the installs, the CPU fan stayed off as the temps were low enough. I didn't look closely at the fan profile to see when it triggers the fan to turn on.

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