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cabinet fans orientation.

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  • Fan
  • Components
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June 5, 2013 12:29:08 PM

I have a NZXT GAMMA Classic Midtower case. My config is core i5 3550, 8 gigs of ram and a sapphire 7950. The case supports 6 fans. Presently I have installed 3, 120mm 90 CFM fans in the cabinet, all as "exhaust". Two for the processor(top and back fan) and one dedicated to the Graphics card(side fan). But my system still seems to reach high temperature when gaming.(70 degrees for the CPU) What should be the optimal placement of fans.

Should I place one fan in the front as intake and make the side fan(dedicated to the GPU) also as intake and keep exhaust fans in the back.

The GPU blows air into the cabinet so I had kept the side fan as exhaust. I read the side and bottom fans should be intake.

I do not have issue in adding another fan to the setup. I just need an optimal placement to keep temperature within my comfort level.

More about : cabinet fans orientation

June 5, 2013 12:57:14 PM

Side fan performance varies greatly, it really depends on the fan and the exact location of the fan over the board if the system will be better off with an intake, exhaust, or no side fan at all. Optimal fan layout varies by case, the only way to find the true optimal fan layout is to experiment. Try with your side fan set to intake, and without it running to see if that changes your temperature either positively or negatively.

I have read a lot of reviews and discussions about fan placement, but no one has ever come to a solid generalizable conclusion, it varies far too much from case to case. The top and back being exhaust fans are common, but not necessarily optimal. To reduce complexity i would stick with just moving your side fan around and see if you can reduce temps a bit, also check to make sure that the heatsink on your CPU is seated well, 70C is a bit high even in a poorly ventilated environment.
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June 6, 2013 1:03:22 AM

hunter315 said:
Side fan performance varies greatly, it really depends on the fan and the exact location of the fan over the board if the system will be better off with an intake, exhaust, or no side fan at all. Optimal fan layout varies by case, the only way to find the true optimal fan layout is to experiment. Try with your side fan set to intake, and without it running to see if that changes your temperature either positively or negatively.

I have read a lot of reviews and discussions about fan placement, but no one has ever come to a solid generalizable conclusion, it varies far too much from case to case. The top and back being exhaust fans are common, but not necessarily optimal. To reduce complexity i would stick with just moving your side fan around and see if you can reduce temps a bit, also check to make sure that the heatsink on your CPU is seated well, 70C is a bit high even in a poorly ventilated environment.


Thanks, I will experiment with all the setups coming weekend.
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