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Thread: Static Pressure or Air Flow Fan?

  1. #1
    Join Date
    Dec 2014

    Default Static Pressure or Air Flow Fan?

    Hey guys,

    Iím hoping to buy a new fan to cool down my GPU which gets extremely hot while gaming, however Iím unsure whether to purchase an Air Flow or Static Pressure fan. Iím using a Fractal Design Define R5 case, with the two stock 140mm fans (GP14 @1000RPM) currently as intake and exhaust.

    Iím going to add a single fan thatís more powerful than the current ones, however there are two things Iím uncertain of. Firstly would it be cooler for my GPU if the more powerful fan is blowing directly towards the card? Or would it be cooler to have the two GP14 fans blowing from the front, and the more powerful fan as an exhaust, sucking out hot air in the back?

    And this leads on to my second question, which would be the more suitable fan for me to purchase? Would it be a high air flow one or a static pressure one? Also Iím not sure how much it affects this, but my PC case have two fan filters in the front and bottom. Iíve uploaded a pic of my system here:

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    So given my current situation, which type of fans would be most suitable for my setup? Also any recommendation on the specific fan model I can purchase? Itís the first time Iíve added a fan to my PC, donít have much of a clue and only know itís supposed to be 140mm haha.

    Thank you so much for reading this, sincerely appreciate any help and suggestions. Cheers and wish you a happy new year!

  2. #2
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Static Pressure or Air Flow Fan?

    A cooling fan with higher static pressure is usually used when it is attached to a cpu heatsink or radiators.

    I think that a higher CFM cooling fan blowing towards your video card will provide the best gpu cooling but you might need to make some sort of air duct to concentrate the airflow to the topmost part of the video card. A 50 - 60 CFM fan will probably be sufficient. You can find higher 120mm CFM fans but they will be much louder. There are after-market gpu cooling options but they will be much more expensive.

    I had good results cooling the top of my video card using a 92mm angled cooling fan in my rude and crude setup.

    Q9650 @ 4.10GHz [9x456MHz]
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    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
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