Front or rear cooling?

[Mini Van Dan]

I was wondering. Is it better to have your fans blow out the back or blow out the front or is it situational? The reason I ask this is because I building now my 3rd comp but its place will be with its rear against a wall. So I was wondering if it'd be ok to make the fans push forward so it doesn't suffocate.

[LUUD18]

It's better in the back. The front fans usually have a dust filter and they are placed on the bottom (because hot air goes up). The back fans are placed higher. Do you have any top fan slots? Those are the best.

[Mini Van Dan]

42 minutes ago, LUUD18 said:

It's better in the back. The front fans usually have a dust filter and they are placed on the bottom (because hot air goes up). The back fans are placed higher. Do you have any top fan slots? Those are the best.

yes I would have 1 rear top. I guess my thought was it wouldn't get enough air flow being close to the wall

[LUUD18]

1 sucking in the front and 1 blowing on the top should be allright. What are your specs?

[Mini Van Dan]

33 minutes ago, LUUD18 said:

1 sucking in the front and 1 blowing on the top should be allright. What are your specs?

msi gtx 1060 6gb

2x4gb ram ddr4 2400 corsair vengance

and ryzen 1500x 3.5

corsair rm 550w 80+gold

msi proseries b350 ryzen micro atx mobo

1tb wd black

250gb ssd Samsung evo

fractal core 1500 micro atx case

[LUUD18]

Change the back fan to the top (blowing out). Leave the front fan in (sucking). If you have another fan then place it next to the top one (also blowing out). Also rotate your CPU Cooler (if it isnt a stock cooler) so it points upwards (blows air to the top). 

[Mini Van Dan]

Just now, LUUD18 said:

Change the back fan to the top (blowing out). Leave the front fan in (sucking). If you have another fan then place it next to the top one (also blowing out). Also rotate your CPU Cooler (if it isnt a stock cooler) so it points upwards (blows air to the top). 

what if i added a fan to the top and had that blowing up what that be ok to?

[LUUD18]

I made a picture for you. I numbered the positions in order. So first fan would be on place 1, second on 2, etc.

[LogicalDrm]

Front fans bring cool air for GPU. Mainly, and some to CPU ofc. But seeing as you got that sorted already, nvm.

 

How close to wall would this have been? My case is about 10cm and it doesn't cause anything. Except wall being bit hot.

[Mini Van Dan]

8 hours ago, LoGiCalDrm said:

Front fans bring cool air for GPU. Mainly, and some to CPU ofc. But seeing as you got that sorted already, nvm.

 

How close to wall would this have been? My case is about 10cm and it doesn't cause anything. Except wall being bit hot.

it's prolly about the same. I guess i'm just still not fully aware how cooling works so I figured. Better to be safe then sorry