Question (Picture arttached) Should my PSU fan face upwards or downward?

[Spiderbait375]

Should my PSU fan face upward or downwards? My case is the cooler master cosmos SE

https://imgur.com/a/pAbeLYJ

View: https://m.imgur.com/a/pAbeLYJ

 

[Spiderbait375]

Should my PSU fan face upward or downwards? My case is the cooler master cosmos SE

https://imgur.com/a/pAbeLYJ

View: https://m.imgur.com/a/pAbeLYJ

It's on this flat carpet as in picture

 

[JaAntonio]

Upwards would the best airflow to the PSU. The fan blows fresh air from the natural airflow you generate with intake fans.

 

[GarrettL]

Typically the pc case mounting holes for the power supply should only allow the psu to be oriented with the fan on the bottom pushing air upwards.

 

[tennis2]

If there's enough space between the carpet and the case for your fingers, point the PSU fan down.

If not, or if your PSU has a semi passive mode (doesn't always have the fan on) the face the fan up (into the case)

 

[InvalidError]

I'd face the fan up since a catastrophic PSU failure could create sparks and set the carpet on fire.

 

[Rogue Leader]

I'd face the fan up since a catastrophic PSU failure could create sparks and set the carpet on fire.

I'd not put the computer on a carpet as thats the worst spot possible to put it. At least get a plastic mat for it or something.

The PSU fan should always be facing downward unless you have a PSU that benefits from it being upward (ie a hybrid PSU where the fan doesn't turn on except under heavy load, heat is normally released by natural convection). This way the fan is always taking in its own source of cool air. And that case has a nice dust filter for the PSU at the bottom too.

 

[FANBOI2000]

Unless the case makes it obvious I have the fan facing down. The case I am working in now says it is important I do so. I guess because that is where the vent is. I wouldn't put the PC directly on carpet, even on book would help keep airflow clear. The PC will sink into the carpet over time and carpets are statically charged dust magnets.

 

[DeanHasACorei7]

you can either have intake or output by facing the fans up the air will build up inside your case but outtake would blow air out

 

[tennis2]

you can either have intake or output by facing the fans up the air will build up inside your case but outtake would blow air out

PSU fans blow into the unit (aka, they exhaust air out the back)

 

[USAFRet]

I'd not put the computer on a carpet as thats the worst spot possible to put it. At least get a plastic mat for it or something.

This.

PSU facing to the outside of the case. In this situation, down.
But not on carpet.

 

[Spiderbait375]

Cool thanks for the help you guys

 

[Spiderbait375]

I have a rubber mat under the power supply area now

I'd not put the computer on a carpet as thats the worst spot possible to put it. At least get a plastic mat for it or something.

The PSU fan should always be facing downward unless you have a PSU that benefits from it being upward (ie a hybrid PSU where the fan doesn't turn on except under heavy load, heat is normally released by natural convection). This way the fan is always taking in its own source of cool air. And that case has a nice dust filter for the PSU at the bottom too.

I have a rubber mat underneath my computer now will that help?

 

[SkyNetRising]

Put your case on a stand.

https://www.amazon.com/VIVO-Computer-ATX-Case-Adjustable-CART-PC01/dp/B074P76TBW

 

[zero_l0gic]

Very simple, if the case has a hole so the psu can breathe then face it down, if no then face it up.

 

[Rogue Leader]

I have a rubber mat under the power supply area now

I have a rubber mat underneath my computer now will that help?

Thats a great idea, PSU facing down as well, this will help with dust too. Best way to do it if your PC needs to be on carpet.

 

[VIVO-US]

Put your case on a stand.

https://www.amazon.com/VIVO-Computer-ATX-Case-Adjustable-CART-PC01/dp/B074P76TBW

The Cosmos SE is way too large to fit, but thanks for recommending our cart!