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  1. #1
    Senior Moment Tony's Avatar
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    Default Case Fan - suck or blow?

    The title says it all - should my case fan be blowing air in or sucking air out?

  2. #2
    tweakedgeek tweak'e's Avatar
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    Default Re: Case Fan - suck or blow?

    depends on where it is placed and what part of your cooling design it is in.
    Tweak it till it breaks

  3. #3
    Senior Moment Tony's Avatar
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    Default Re: Case Fan - suck or blow?

    It is a vertical mid-tower case, power supply at the top. The case fan is on the back panel, between the power supply and the cards. The component probably most in line is the Northbridge heat sink.

    I ask because I took it out to clean the dust off, and I'm not sure if I put it back in the same way round.

  4. #4
    Gold Member Cptn Hotshot's Avatar
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    Default Re: Case Fan - suck or blow?

    I think we have been down this track before on something similar

    http://pressf1.pcworld.co.nz/showthread.php?t=47317
    It's a miracle people ever got out of the 20th Century. (Star Trek IV: The Voyage Home)

  5. #5
    tweakedgeek tweak'e's Avatar
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    Default Re: Case Fan - suck or blow?

    while thats a good read.......to save tony some trouble, rear case fan should blow out.
    Tweak it till it breaks

  6. #6
    Baking. bob_doe_nz's Avatar
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    Default Re: Case Fan - suck or blow?

    Whatever floats your boat
    My shutdown application

    Call me Angel Nob Bobstickles. The baking vending builder who can't fix it.

  7. #7
    Senior Member Greven's Avatar
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    Default Re: Case Fan - suck or blow?

    it probably wouldn't make much difference if you had the rear blowing & the front sucking except you would get a lot more dust (or if you actually dust/vacume behind your computer desk, no difference.)

  8. #8
    Senior Moment Tony's Avatar
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    Default Re: Case Fan - suck or blow?

    Well on a 50/50 chance, it looks like I got it right - the rear fan is sucking air out of the case, as is the power supply (I looked at the other thread). I haven't got a front fan.

    Thanks everyone - as usual you can count on PressF1 to leap into action with great advice.

  9. #9

    Default Re: Case Fan - suck or blow?

    Yes the front is for sucking and the rear is for blowing

    this is a good one, it even sucks the dust out
    http://www.dse.co.nz/cgi-bin/dse.sto...ct/View/XH5088
    I was here before in times of yore but then my account broke :-/

  10. #10
    Senior Moment Tony's Avatar
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    Default Re: Case Fan - suck or blow?

    Quote Originally Posted by apparition
    Yes the front is for sucking and the rear is for blowing
    We're talking about fans here, right?

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