Should I face my psu upwards or downwards?

[Tashipirin]

I recently bought an EVGA 450 BR and my case is an aerocool cylon rgb, but I don't know if I should face my psu downwards or upwards. 

[Guest]

12 minutes ago, Tashipirin said:

I recently bought an EVGA 450 BR and my case is an aerocool cylon rgb, but I don't know if I should face my psu downwards or upwards. 

Install it fan up so the heat generated by the PSU rises from the PSU's PCB and doesn't suck dust and dirt up from the floor.

 

[HQuan]

Make the fan of the PSU facing up so the heat will go out easier since hot air goes up easier.

[Tashipirin]

I forgot to put the photo of the case, I don't know if because of that piece of the case I could use the fan upwards

[Tashipirin]

18 minutes ago, Schnoz said:

If the PSU area has a vent on the bottom of the case and you plan to use your computer on a relatively clean, non-carpeted surface, putting your PSU facing downwards is a good option so it can pull in cooler air. However, if you plan to use your computer on a carpet, then it's best to have the PSU fan facing upwards and have the front fans and dust filter accumulate dust instead, since they are easier to clean than the case's bottom-facing PSU air filter.

Yeah it has a dust filter in the bottom, I don't know if I should use the fan upwards because it gets blocked by the case 

[Spotty]

4 minutes ago, Tashipirin said:

Yeah it has a dust filter in the bottom, I don't know if I should use the fan upwards because it gets blocked by the case 

Fan facing down since the case you are using has a PSU shroud that blocks airflow to the PSU if facing up.

[BondiBlue]

11 minutes ago, Tashipirin said:

I forgot to put the photo of the case, I don't know if because of that piece of the case I could use the fan upwards

In your case you do need to have the fan down - the case would block a lot of the airflow if you installed it fan side up. 

[Guest]

32 minutes ago, Tashipirin said:

I forgot to put the photo of the case, I don't know if because of that piece of the case I could use the fan upwards

Since you have a case that completely blocks any airflow from the top, I think common sense would dictate that you need to mount it fan down.

 

[Tashipirin]

37 minutes ago, Schnoz said:

I think it would be a good idea to check the amount of clearance between the top face of the PSU and the PSU shroud. Ideally, you'd want at least ~2 cm of space for the PSU fan. Aerocool has been know for making PSUs of...shaky...to par quality, and I would recommend checking that the case you got from them doesn't have issues with PSU airflow. If the PSU shroud clearance is insufficient, it's best to mount the PSU facing downwards.

I checked out, it has 6 cm of space, I also saw that it has on the bottom 2 slots for 120mm fans but some of the cables of my PSU that I'm not using are down there, so airflow wouldn't be a problem there? 

[BondiBlue]

2 minutes ago, Tashipirin said:

I checked out, it has 6 cm of space, I also saw that it has on the bottom 2 slots for 120mm fans but some of the cables of my PSU that I'm not using are down there, so airflow wouldn't be a problem there? 

Even if there is a little bit of room you'd be better off putting the fan downwards. The bottom of the case would be able to get more fresh air than directly under that shroud. 

[Guest]

29 minutes ago, BondiBlue said:

Even if there is a little bit of room you'd be better off putting the fan downwards. The bottom of the case would be able to get more fresh air than directly under that shroud. 

Not sure where this myth that PSUs need cool air came from. You know most quality PSUs are made to operate at 40 to 50°C, right?

 

[BondiBlue]

9 minutes ago, jonnyGURU said:

Not sure where this myth that PSUs need cool air came from. You know most quality PSUs are made to operate at 40 to 50°C, right?

 

I never said anything about getting cool air. You'd be able to get more air in general, cooler or not, from the bottom of the case since there's a metal shroud right above the PSU. 

[Guest]

13 hours ago, BondiBlue said:

I never said anything about getting cool air. You'd be able to get more air in general, cooler or not, from the bottom of the case since there's a metal shroud right above the PSU. 

In OP's case, you're correct.  But most cases have a perforated PSU shroud if they have a shroud at all.

 

[BondiBlue]

11 minutes ago, jonnyGURU said:

In OP's case, you're correct.  But most cases have a perforated PSU shroud if they have a shroud at all.

Yes, I was talking about for this particular example. If the shroud is perforated then there's no problem with facing the fan upwards, but that just depends on the case.