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psu mounting direction

johnyb98

Hi guys.

Suppose we have a case that psu place is bottom. And there is an air hole with a filter in order to mount psu with fan down. But, unfortunately you must mount case straight on the floor, with not even a millimeter space from floor. You cannot mount case on something. So, it is straight floor mounted. In such case, what is your suggestions of psu mounting direction:fan up or down?

 

Thanks!

 

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If you're putting the case on carpet or flush with the floor, fan up for sure. While best practice is to have as many components sucking in fresh air as possible, the PSU is one of the few where taking in warmer air from the case won't be the end of the world, provided you aren't running it at full load all the time.

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Definitely fan up. If there is a PSU shroud in your case I recommend you remove it or get a different case.

~Air Cooling Advocate~

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Cases that have a PSU intake vent on the bottom will also have feet that raise the case off the floor.

They would not put an intake on the bottom if the case had nowhere to get airflow.

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