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Question about fan placement.

post #1 of 4
Thread Starter 
I have a case that has four extra fan mount areas. So I'm going to ask a few questions here.

1) my case has room for a fan (120mm) on the bottom. Would 1inch and a half be effective for pulling air into the case? I added longer legs to the case so I get more air off the carpet.
2) my side door has room for a fan, I don't know if I should pull or exhaust air. It's right next to the video card. I have a gtx760 which vents into the case, dual fan style. So I I'm not to sure which way I want it to flow
3) the case also has room for two top exhaust fans. Along with the one on back by the cpu. I don't have much room on top unless they sell slim fans. The mid top fan can have a full size 120mm fan.
4) is their a way to tell if I have the right balance of intake n exhaust? Two intakes and three exhaust. Most of the fans will be mismatches cuz I have so many fans from over the years.

Future note) I might grab a Corsair have series water cooling 100 or a 60. I might utilize some where later

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Dionysus
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i5 2500k msi mpower EVGA GTX 760 Corsair Vengeance 8GB 
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Dionysus
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i5 2500k msi mpower EVGA GTX 760 Corsair Vengeance 8GB 
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h100i windows 7 Gear Head Corsair RM850 
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post #2 of 4
I had a Corsair C70 for a while which is a similar setup to yours. I had a pair of Windforce 580's (open-style coolers), and what I found got me the lowest temperatures was this: Silverstone AP121's on front intake to tunnel air directly to video cards (drive cages removed) and bottom intake, then a side fan as exhaust. This meant there was tons of cold air being pushed towards the GPUs and the side fan helped remove it from the case so it wouldn't heat up the CPU cooler as much.
post #3 of 4
Thread Starter 
Yeah I was also thinking of getting one high flow rate fan up front at 120 so I know for sure it's pulling in air.

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Dionysus
(11 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k msi mpower EVGA GTX 760 Corsair Vengeance 8GB 
CoolingOSKeyboardPower
h100i windows 7 Gear Head Corsair RM850 
CaseMouseMouse Pad
Corsair C70 G602 corsair 
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Dionysus
(11 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k msi mpower EVGA GTX 760 Corsair Vengeance 8GB 
CoolingOSKeyboardPower
h100i windows 7 Gear Head Corsair RM850 
CaseMouseMouse Pad
Corsair C70 G602 corsair 
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post #4 of 4
When I have cases with air intake on the bottom I usually just mount tons of fans elsewhere blowing out. My Azza9000 came with two little funny fans down there and they DO increase the turbulence and keep my ram/Vregs cool (cpu down with a h80i on it) but really they're fighting a losing battle down on the bottom. It is far more effective to dump air than to push it in.

The old Sun 4/110s didn't have fans on the bottom (we had one at Valdosta that would fly a ping pong ball on top) and those were chimney top-fan systems.

If you can get some kind of plastic material like bath scrunchies to spread out down there for lint collection and then power dumped from the rest of the system you'll probably be in much better shape.
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