Some Airflow Upgrades

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FireFox-89
Posts: 72
Joined: Wed Nov 27, 2019 9:18 pm
Hardware configuration: Luna-
AMD Ryzen 5 2600 @ stock | Noctua NH-U9s with 2 Noctua B9 Redux 1600 92mm Fans
MSI B450 Tomahawk Max Revision 1.0 BIOS version 3.F0
Corsair Vengeance LPX 4x8GB DDR4-3000 | Timings 16-18-18-36
Sapphire Radeon RX 590 Nitro+ 8GB
SeaSonic M12II 850w 80+Bronze PSU

Terra-
Intel Core i5-4690K @ 4.20GHz with Vcore of 1.138v | Corsair H100i V2 with 2 Corsair SP120 120mm fans
Gigabyte Z87X-UD3H BIOS version 10b
Crucial Ballistix Sport 2x4GB DDR3-1600 | Timings 9-9-9-24
Sapphire Radeon RX 570 Pulse 4GB -100mV undervolt
OCZ Technology ZS Series 550w 80+Bronze PSU

Anubis-
Intel Core i7-5820K @3.80GHz with Vcore of 1.089v | Cooler Master Hyper 212 with Noctua NF-F12 120mm IPPC 3000 fan
Gigabyte X99-SOC Champion BIOS version F23c
G.Skill Trident Z RGB 2x8GB DDR4-3000 @ 2400 | Timings 15-15-15-36
Sapphire Radeon RX 580 Nitro+ 4GB -25mV undervolt
SeaSonic Prime Platinum 750w 80+Platinum PSU

All machines running F@H v7.6.21
Location: Lincolnshire, UK

Some Airflow Upgrades

Post by FireFox-89 »

Not to sure if this subsection applies to this but I'd thought I'd share a little randomness. Since summer isn't too far here in the UK I'm planning on adding a second Sapphire Radeon RX 570 Pulse I thought I'd upgrade the fans or basically upgrade the rear 120mm and add a pair of 140mm Redux 1,500rpm fans to the top of the case. The idea with the two 140mm fans is to also aide air flow around the VRMs for the motherboard Vcore and Vmem. I'm running a modest overclock of 4.20GHz @ 1.138v so nothing drastic but have noticed the heatsinks do get quite warm (well within spec I'm sure) so a little extra airflow will surely help.

The fans in question are Noctua Redux 120mm for the rear exhaust and a pair of Noctua 140mm Redux 1,500rpm for the top which are connected to a fan controller so when they're not required I can turn them off. I have more fans on the way for the other machines that I will post at some point. The 3 fans for Terra came out to almost £40 but dispite the price they also have a 6 year warranty but I've seen their fans a lot older than that running as good as they day they were built so basically this is a cooling investment haha. I don't have pictures yet but at the front of the case is the Corsair H100i V2 cooling the CPU, later in the year my plan is to replace the 120mm Corsair fans with 120mm Noctua Industrial PPC 3000 fans which are rated for 3,000rpm which will also go though a fan controller. Overall the gains may not be that great but it is still good fun :D

Also I'm not very well versed in photo editing so apologies for the pictures.

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Do you even fold bro?
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HaloJones
Posts: 920
Joined: Thu Jul 24, 2008 10:16 am

Re: Some Airflow Upgrades

Post by HaloJones »

If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
single 1070

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Kebast
Posts: 386
Joined: Thu Aug 06, 2015 5:21 pm

Re: Some Airflow Upgrades

Post by Kebast »

I tried one of the 140mm Noctua Industrial PPC 3000 fans and it was super loud. If you care about fan noise, be aware. They do give great airflow, but I couldn’t stand the noise. Ended up going with some much quieter 1200 rpm fans
Last edited by Kebast on Sun May 03, 2020 4:03 pm, edited 1 time in total.
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Ryzen 5900x 12T - RTX 4070 TI
FireFox-89
Posts: 72
Joined: Wed Nov 27, 2019 9:18 pm
Hardware configuration: Luna-
AMD Ryzen 5 2600 @ stock | Noctua NH-U9s with 2 Noctua B9 Redux 1600 92mm Fans
MSI B450 Tomahawk Max Revision 1.0 BIOS version 3.F0
Corsair Vengeance LPX 4x8GB DDR4-3000 | Timings 16-18-18-36
Sapphire Radeon RX 590 Nitro+ 8GB
SeaSonic M12II 850w 80+Bronze PSU

Terra-
Intel Core i5-4690K @ 4.20GHz with Vcore of 1.138v | Corsair H100i V2 with 2 Corsair SP120 120mm fans
Gigabyte Z87X-UD3H BIOS version 10b
Crucial Ballistix Sport 2x4GB DDR3-1600 | Timings 9-9-9-24
Sapphire Radeon RX 570 Pulse 4GB -100mV undervolt
OCZ Technology ZS Series 550w 80+Bronze PSU

Anubis-
Intel Core i7-5820K @3.80GHz with Vcore of 1.089v | Cooler Master Hyper 212 with Noctua NF-F12 120mm IPPC 3000 fan
Gigabyte X99-SOC Champion BIOS version F23c
G.Skill Trident Z RGB 2x8GB DDR4-3000 @ 2400 | Timings 15-15-15-36
Sapphire Radeon RX 580 Nitro+ 4GB -25mV undervolt
SeaSonic Prime Platinum 750w 80+Platinum PSU

All machines running F@H v7.6.21
Location: Lincolnshire, UK

Re: Some Airflow Upgrades

Post by FireFox-89 »

HaloJones wrote:If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
The only filter the case has is on the front so dust build up is quite high, I clean out the PC on a regular basis due to running 24/7, not only does it fold it is also my Netflix and YouTube box. Dust buildup is not a concern. The top 140mm fans will only be used if needed so as long temps are fine they'll be off so most of the time the case is at positive pressure.

Just infront of the PSU is a space for an additional 120mm fan so if needed I can add another there.
Kebast wrote:I tried one of the 140mm Noctua Industrial PPC 3000 fans and it was super load. If you care about fan noise, be aware. They do give great airflow, but I couldn’t stand the noise. Ended up going with some much quieter 1200 rpm fans
I'll have them going through a fan controller so I can vary the speed, if I'm not around and if needed I can dial up the fan speed to full. I don't mind a little fan noise but overall I'm more concerned with temperatures so aslong as they're in check I'm happy to deal with the noise :)
Do you even fold bro?
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MeeLee
Posts: 1375
Joined: Tue Feb 19, 2019 10:16 pm

Re: Some Airflow Upgrades

Post by MeeLee »

HaloJones wrote:If you've only added fans as exhausts, you will likely now have negative case pressure (less intakes than exhausts) and this will cause air to be sucked in via other routes which may not be filtered leading to an increase in dust inside the case.
I use duct tape to tape off most of the airvents, and keep the front vent open.
Many cases have a filter on the front vent, so even if the case is getting a negative pressure, a front 120mm intake is more than enough to provide fresh air.

However, if there was a way you could run the GPU outside of the case, it would run a lot cooler.
foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: Some Airflow Upgrades

Post by foldy »

If the air pressure of intake vs out is not even then I got strange noises from the fans fighting against the pressure. With even intake / outtake it has smooth air flow. As I like silent case and high air flow I use as many fans as possible in the case but all on low speed. For GPUs blowing hot air to the side I found 2 fans aside of the GPUs is best.
gordonbb
Posts: 510
Joined: Mon May 21, 2018 4:12 pm
Hardware configuration: Ubuntu 22.04.2 LTS; NVidia 525.60.11; 2 x 4070ti; 4070; 4060ti; 3x 3080; 3070ti; 3070
Location: Great White North

Re: Some Airflow Upgrades

Post by gordonbb »

I just gave up trying to keep dual GPU systems cool and quiet and went with one dual-axial GPU in the upper slot and one Hybrid card in the lower. Makes the system much quieter.

I usually use Noctuat iPPC3000 fans, 2 as front-intake and one as rear exhaust in Fractal Define R4, S and Meshify S2s. Just use the BIOS fan curve editor to lower the RPMs but it's nice to know if I need a massive amount of airflow at a high static pressure I have it there in my back pocket.

The Redux are nice but don't have the high static pressure you'd want in the front of a Define case to get around those 90 degree offsetted air vents. I'm slowly replacing my Define R4s with meshifys as my own informal tests and those done by others have shown that you can get system just as quiet with a case like the meshifys by being able to run 140mm fans at lower speeds due to less impedance.
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FireFox-89
Posts: 72
Joined: Wed Nov 27, 2019 9:18 pm
Hardware configuration: Luna-
AMD Ryzen 5 2600 @ stock | Noctua NH-U9s with 2 Noctua B9 Redux 1600 92mm Fans
MSI B450 Tomahawk Max Revision 1.0 BIOS version 3.F0
Corsair Vengeance LPX 4x8GB DDR4-3000 | Timings 16-18-18-36
Sapphire Radeon RX 590 Nitro+ 8GB
SeaSonic M12II 850w 80+Bronze PSU

Terra-
Intel Core i5-4690K @ 4.20GHz with Vcore of 1.138v | Corsair H100i V2 with 2 Corsair SP120 120mm fans
Gigabyte Z87X-UD3H BIOS version 10b
Crucial Ballistix Sport 2x4GB DDR3-1600 | Timings 9-9-9-24
Sapphire Radeon RX 570 Pulse 4GB -100mV undervolt
OCZ Technology ZS Series 550w 80+Bronze PSU

Anubis-
Intel Core i7-5820K @3.80GHz with Vcore of 1.089v | Cooler Master Hyper 212 with Noctua NF-F12 120mm IPPC 3000 fan
Gigabyte X99-SOC Champion BIOS version F23c
G.Skill Trident Z RGB 2x8GB DDR4-3000 @ 2400 | Timings 15-15-15-36
Sapphire Radeon RX 580 Nitro+ 4GB -25mV undervolt
SeaSonic Prime Platinum 750w 80+Platinum PSU

All machines running F@H v7.6.21
Location: Lincolnshire, UK

Re: Some Airflow Upgrades

Post by FireFox-89 »

gordonbb wrote:I just gave up trying to keep dual GPU systems cool and quiet and went with one dual-axial GPU in the upper slot and one Hybrid card in the lower. Makes the system much quieter.

I usually use Noctuat iPPC3000 fans, 2 as front-intake and one as rear exhaust in Fractal Define R4, S and Meshify S2s. Just use the BIOS fan curve editor to lower the RPMs but it's nice to know if I need a massive amount of airflow at a high static pressure I have it there in my back pocket.

The Redux are nice but don't have the high static pressure you'd want in the front of a Define case to get around those 90 degree offsetted air vents. I'm slowly replacing my Define R4s with meshifys as my own informal tests and those done by others have shown that you can get system just as quiet with a case like the meshifys by being able to run 140mm fans at lower speeds due to less impedance.
That is pretty sweet :)
Do you even fold bro?
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