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How should I set up my fans?

I have an older MGE Viper case. It has 3 places for fans: 120mm rear, 120mm front, and 80mm side. Imgur Case layout and available fans ... excuse the crude image but I wanted to have a visual on my set up.

Currently I just have the case and I have the parts I ordered on the way. I will have have two fans: 120mm 3-speed (39/56/79 CFM), 80mm (25.6 CFM). I have an i5-4570 with a Hyper 212 EVO and a XFX R9-280X-TDFD that has two fans. The PSU will be a 750W modular.

Since this will be used in a hot environment, I think a negative air pressure configuration will be the best. What is the best configuration I can have? If the side fan location will be used, should it be an intake or exhaust? Should I use the 120mm fan in the rear exhaust and use the 80mm in the front intake? Or is it better to get another 120mm fan? What speed or CFM should I get?

Thanks for the help!
3 answers Last reply Best Answer
More about set fans
  1. Best answer
    What I usually do is one intake in the front and one exhaust in the back. I don't know if you can put a 80mm fan into a 120mm slot, but try it. If you can put the 80mm fan in the back.
  2. TanFrash1 said:
    What I usually do is one intake in the front and one exhaust in the back. I don't know if you can put a 80mm fan into a 120mm slot, but try it. If you can put the 80mm fan in the back.


    Originally It was an 80mm fan but has space for 120mm. So the faster fan as intake then exhaust on the slower fan, then?
  3. That's what I would get
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