Power supply fans

Aidan100195 · Aug 4, 2017

Hi there,

I've got a TX750 psu which has a fan on the bottom, would this fan need to be placed up or down when put in the case?

Thanks.

somesh101 · Aug 4, 2017

it need to placed in the direction from where it ca get air. simplifying fan side should have air access.

Snipergod87 · Aug 4, 2017

Where is the power supply mounted in your case? Will there be a reasonable gap between the fan and the frame of the case (or air vent)? If so it really doesnt matter.

hdmark · Aug 4, 2017

Depends on the case

PSU mounts int he top of the case with vents on the top above hte psu - aim fan up
PSU mounts in the top of the case with no vents - aim fan down
PSU mounts in the bottom with vents on the bottom - aim fan down
PSU mounts in the bottom with no vents - aim fan up

InvalidError · Aug 4, 2017

I would never put the PSU fan up as that would enable anything falling inside the PC dropping directly into the PSU. Even cases with bottom-mounted PSUs still have a ~1/2" gap between the PSU and bottom of the case, which is more than enough for decently efficient PSUs to get all the air they need. On cases with a bottom intake filter for the PSU, the filter itself causes a much bigger airflow obstruction than a solid bottom with 1/2" of clearance.

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