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  1. #31
    Bright Spark Reputation: 246
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    Well 4 of the 5 fans I bought are in (all sickleflows) and my temps have dropped by about 10 deg C, after about 3 hoursish on swtor (not the most intensive game i know) and with an ambient room temp of about 26 I am on 55-57 deg on GPU and 39-41 on CPU so am quite impressed. Just need to buy some rubber fan pins for the HDD cage mounted fan as I cant get in there with a screw driver to hang it.
    Have currently got both my old 140mm stock coolermaster fans as intakes on the side panel, gonna have a play about tomorrow and set the one by the GPU to exhaust and see what it does temp wise, cirrently have a load more positive pressure so losing the intake will balance it a tad

  2. #32
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    Well in theory its actually good to have a case with more positive pressure then negative as you are pulling in MORE cool air, and forcing more "dead air" or the stale air thats left in the case from the PSU and GPU out.

    Also with extra negative pressure apparently what can happen is the heat from the likes of a GPU can actually be sucked back in more and stay in the case rather then release.

    If I've helped at all please feel free to add Rep by clicking the little star

  3. #33
    Bright Spark Reputation: 246
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    With the side fans set to exhaust I dropped another 3 degrees due to the vast amount of heat being pumped out the side of the card into the case, at least having the exhaust there sucks most of it out. Gonna give me filters a clean later so will see what sort of dust I have got internally with running negative pressure for the last few weeks.

    Am happy so far though, gpu hasn't gone above 60 after 3-4 hours of bf3 on ultra so will do me nicely since the ambient room temp is normally 25ish.

  4. #34
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    Your case isn't airtight so whatever setup you go for means that air will find a way through whatever gaps it can to equalise the pressure inside and outside.

    Generally negative pressure will provide slightly better cooling but the downside is that it will tend to suck dust into the case through those unfiltered gaps. And unless you clear the dust off regularly then over time this layer of dust can significantly reduce cooling.

    This of couse assumes you only have a modest amount of positive or negative pressure. If you do a really silly setup with, say, all of the fans pushing air out then you will have terrible cooling. Plus make sure that all of the fans on a particular side of the case are blowing in the same direction.

 

 

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