S340 PSU Placement

[RabidApocalypse]

I am buying a new power supply and I really want to point the fan on the PSU up into the case instead of down. Will this create any issues?

 

[scout_03]

with this it might raise the psu operating temp since it is in a separate casing and have a top plate i would put it face down .

 

[Eximo]

In contemporary designs with bottom mounted supplies the PSU is intended to be separate from the airflow of the rest of the system. Takes air in from below and immediately exhausts.

If you mount it with the fan facing up, you are attempting to draw air down then out, which is against the natural rising of heated air. You are also fighting whatever pressure the case fans produce.

GPUs pull air up, the PSU would be pulling air down directly opposite as well.

Old style top mounted supplies had the PSU as part of the exhaust system of the case. Sometimes being the only exhaust. (Usually intake, CPU fan, and top mounted PSU, or no intake)

Haven't seen one in a good while, but there were some reverse top-mounted chassis where the fan pulled air in from outside at the top of the case. And the occasional chassis with a horizontal mounted supply.