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Best Cooling Config for my Rig

post #1 of 6
Thread Starter 
Hey, at the moment both of my CPU fans (there's one hidden on the rear of the heatsink) are aimed at the exhaust. The 120mm behind them is the exhaust, and the fan at the bottom is blowing some air onto my x-fired 5770s.

Aside from the wimpy 80mm at the top, those are all of the fans currently in my rig. My question is, is there any way I can improve the effectiveness of the cooling without increasing the noise? Also, if there's any way I can reduce the noise without buying a couple Noctua's or something, that would be pretty cool.

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Project Omnia
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500GB 850 Evo, 60GB Agility 2 SSD & 1TB Barracuda ASUS Combo Drive Windows 10 / Fedora 22 24" Dell IPS 
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post #2 of 6
a cheap CM Sickle Flow will bo good try fitting a 120mm fan in the empty 5'' bay and u need some serious cable management
Hope that helped
post #3 of 6
a heavily negative pressured configuration like your case will simply reduce the overall efficiency of ALL your fans since they are all competing to exhaust the air. in the end, the fan with the strongest static pressure wins and the "lesser" fans would push ALOT less air then they would if you have a positive pressure or balanced pressure configuration.
post #4 of 6
everything as intake would be a good idea except for the rear exhaust.
I do see a problem. how far is your rear CPU fan from your exhaust? if your rear exhaust is not pushing more air than your rear cpu fan is, then you will have hot air circulating the case, so either take off the rear fan, or take out your rear exhaust and have no fan there, preferably no rear grill either, and then have everything as intake.
   
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core 2 duo P8700@2.53GHz 2242CTO Intel X4500MHD 4gb 
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Panasonic 6-cell + 65W AC adapter lenovo t500 Logitech MX518 
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Intel i5 760 evga p55 sli MSI gtx460 Hawk corsair dominator 
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kingston ssdnow hyper 212+ windows 7 professional sam syncmaster 
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by psyclum View Post
a heavily negative pressured configuration like your case will simply reduce the overall efficiency of ALL your fans since they are all competing to exhaust the air. in the end, the fan with the strongest static pressure wins and the "lesser" fans would push ALOT less air then they would if you have a positive pressure or balanced pressure configuration.
So, how would I achieve a "balanced pressure configuration?"
Project Omnia
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Core 2 Quad Q8400 Gigabyte EP45T-USB3P MSI Radeon R9 290 with Twin Frozr IV 4x2GB G.SKILL 1600MHz DDR3 
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500GB 850 Evo, 60GB Agility 2 SSD & 1TB Barracuda ASUS Combo Drive Windows 10 / Fedora 22 24" Dell IPS 
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Project Omnia
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CPUMotherboardGraphicsRAM
Core 2 Quad Q8400 Gigabyte EP45T-USB3P MSI Radeon R9 290 with Twin Frozr IV 4x2GB G.SKILL 1600MHz DDR3 
Hard DriveOptical DriveOSMonitor
500GB 850 Evo, 60GB Agility 2 SSD & 1TB Barracuda ASUS Combo Drive Windows 10 / Fedora 22 24" Dell IPS 
KeyboardPowerCaseMouse
Das Keyboard Model S Ultimate (Brown Switches) Corsair HX750i Thermaltake Armor Logitech G9x 
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post #6 of 6
Quote:
Originally Posted by btgrant View Post
So, how would I achieve a "balanced pressure configuration?"
a balanced pressure configuration takes into consideration of powersupply and GPU fans as exhaust ports. the calculation is a rough estimate, you take the CFM rating of your fan, subtract about 30% of that number to account for air filter constriction, then balance that against the exhaust you have on the system. you do not take 30% off on the exhaust fans because you don't filter the exhaust fans, only the intake fans.

personally i like my case to be alittle on the positive pressure side, so i try to have double the take as I do exhaust. this way, there is no chance of unfiltered air going into the case and it wont really affect the performance as much because excess pressure inside the case will simply help the exhaust fans spin alittle faster on the same voltage.
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