System Fans

[anbo369]

hello everyone,

the case that i am buying for my new build comes with 2 pre-installed fans one blowing in at the front and the other blowing out from the back.
The case has a spot where i can add another fan on the side panel, and i was wondering if its better to have 2 fans blowing in and 1 fan blowing out. Or 1 fan blowing in and 2 fans blowing out.
I have no idea which is better so i will let you experts decide for me then i will follow along like a blind sheep.... don't know where that expression came from... mighta just made it up, but meh.

thanks for reading this and i will greatly appreciate any response... unless it is abuse, well if its funny abuse thats ok.... i'm gonna go to bed now... way past my bed time lol.

 

[Bodaggit23]

If you're adding a fan to the side panel, it should blow in.

In general:

Front fans: Blow in
Side fans: Blow in
Bottom fans: Blow in
Top fans: Blow out
Rear fans: Blow out

 

[bomberboysk]

2 Blowing in and 1 blowing out(positive pressure) will keep dust on the side panels and such to a minimum by blowing out air where there are openings in the case(vents, holes, etc)

 

[anbo369]

thank you very much!