robortwillys

Hello everyone,

I'm considering moving the PSU to the bottom of the case I'm building, but I'm not sure there is enough space for proper air intake.

It draws with a 140-mm fan, and there will be a gap along the bottom of the case about 1/8" high, figure a total of about 40 inches in length on this gap, for a total of about 5 square inches of inlet space.

Two questions: Will this be enough inlet space to allow proper air flow for the PSU? Assuming it IS enough space, will the narrow constriction make it sound like a wind tunnel?

I can make the gap wider if needed, but I wanted to get some input from those with more knowledge of air flow than I.

Thanks!!

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billbartuska

No the "gap" is a cylinder, 1/8" high and with a diameter of 140mm. That's the narrowest space the air has to flow through.

I'd assume that is not big enough though. I'd want at least an inch. Can you put an opening in the bottom of the case and add feet?

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olli3

Cant you put the psu another way around so its got some room to intake air? If i understand correctly the fan will be 1/8" from the surface of the case? If it was me id want a bit more room for it than that. Post some pics, might help us get a better idea

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Reflux

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fstfrddy

The one thing you do not want to do is starve the PSU of air flow, it will fry very quick.

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