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Help! Corsair AF or SP for side panel, pointing to 280x

post #1 of 9
Thread Starter 
Hi, I need some help deciding which fans would be best to put in my "side panel" (on top of the 3 280x's) redface.gif pointing directly to my 3 280x, they run very hot while gaming and would like lower temps.

Which fan will do the job better, static pressure SP120 or high airflow AF 140/120?

Also another doubt, when they are pointing to the 280x's should they be exhausting or pushing air directly to my cards?

Updated with Pics smile.gif





I already have 2 Phanteks fans pushing air directly but I want to put an additional fan on top of the 3 280's

The top card is getting around 80c and the vrm is 100c-105c, the bottom ones run much fresher

Sorry for crapy phone pics
Many thanks in advance
Edited by arcade9 - 12/11/13 at 3:44am
post #2 of 9
What is the model of your case and gpu?

If the 280's are pushing air back into your case, and the fan in question is directly next to them I'd personally exhaust the heat out. In theory the opposite would just be pushing warm-ish air back up over your other components. Although in my experience the difference is negligible.

I tried this before with a different gpu on my old Phantom case and the difference was only 2-3 degrees at load. But your mileage may vary.

Edit (only answered half your question, sorry): I would think airflow fans, you aren't trying to push against anything restrictive like through a HDD cage or radiator. If anyone has a different theory I'd be happy to hear it.
Edited by JWak-1 - 12/11/13 at 3:32am
    
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Intel i7 3770K @4.2GHz ASRock Z77 Extreme4 EVGA GTX 1070 FTW Corsair Vengeance 32GB @ 1600mhz 
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BenQ XL2411Z 144hz 24" ASUS VH242H 24" Cooler Master Quickfire TK (Cherry MX Reds) EVGA Supernova G2 750w 
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post #3 of 9
Thread Starter 
Hi, thanks for the answer, I updated the the first post, its actually 3 280x, and its and "outside case" , sorry I was distracted while making the thread redface.gif
Also posted some pics.

How can I get better temps, exhausting or pushing? I plan to put some fans on top of the 3 280x's
but I'm trying to decide between corsair SP or AF
Many thanks in advance
post #4 of 9
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post #5 of 9
Thread Starter 

Thanks for the answer, so static pressure fans pushing air into the cards would be better? I updated my first post with pics.

Thanks in advance thumb.gif
post #6 of 9
Quote:
Originally Posted by arcade9 View Post

Thanks for the answer, so static pressure fans pushing air into the cards would be better? I updated my first post with pics.

Thanks in advance thumb.gif

even though the scythe fans are labeled as high static pressure, which they do have a lot of, their air flow is just insane, i own about 30 of them and will never use another fan lol.
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post #7 of 9
Typhoons suck for that purpose, watch this video: http://www.youtube.com/watch?v=PdcQVOEq47E&feature=player_detailpage#t=70
I would buy SS AP-121 instead.
post #8 of 9
With that many szeged, you'll never need another fan. biggrin.gif

Arcade9, what you are trying to do may be impossible. the space between 280x's doesn't give enough area for air to flow through to supply 3x 95mm fans.

3x PCI slots are 60.9mm wide and 280x is 44mm + 5mm back plate = 49mm wide. That leave 11.9mm on top and front for airflow to 2x 95mm fans. (not sure of fan size)

280mm long + 122mm tall = 402mm x 11.9mm = 4784sq mm fan intake area of airflow.

2x 95mm fans are about 12755sq mm of area of airflow.

That's means the fans can flow 2.67 times as much are as their is area to get air to them.

Adding to that is the fact that the air coming out of 280x on motherboard is heated and has nowhere to go but back into the fans.. front area has similar problem.

End result is they run hot no matter what. Solution is to use 2x 28x's and instead of 3 and leave at least 2 PCI lots empty between them... 3 slots is even better.

You can try setting one of your PH-F140 fans centered on top of the 280x's or even 2 of them on top.. but I doubt it will do much good. Sorry
post #9 of 9
Thread Starter 
Wow, so many replies! this is why I always visit Oc.net thumb.gif

So is there no solution to this problem?
What about I keep the 2 140mm Phanteks blowing air to the cards plus 2 120mm or 1 140mm (insert recommended fan here) on top of the cards, exasuting the hot air. I believe a high Airflow fan will be better for this as I need to get rid of that hot air fast.

Thanks in advance and appreciate all your suggestions. Hoping to find a solution biggrin.gif
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