Fan placement and operations...

[aramp1]

Okay, I have this Aerocool case

http://www.newegg.com/app/ViewProductDesc.asp?description=11-196-005&depa=1

Which has a fan on the front and side that seem to work well. Anyway, I am wanting to put a fan on the rear of the case. I've heard conflicting opinions of having air being pumped through the case, like having the fan pulling air out of the case vs. pressurizing the case like having all fans pump air in the case and the air will find it's way out through all the holes, etc. Can I get some opinions on the subject? Thanks.

ARAMP1

 

[Yeti]

Generally you'll want about the same, fan-pushed airflow coming in and going out. I've never heard of anyone pressurizing the case with all inlet fans and having completely passive exhaust (though I'm sure someone somewhere has done it). My philosophy is cold, low inlet air, and high, hot exhaust air though it can be a bit of trial and error due to the unpredictable airflow inside the case. In my spare time I'm trying to make a Solidworks/COSMOS model with different air flow placements and heat generations... we'll see if that ever gets done.

 

[Praetor]

Which has a fan on the front and side that seem to work well. Anyway, I am wanting to put a fan on the rear of the case. I've heard conflicting opinions of having air being pumped through the case, like having the fan pulling air out of the case vs. pressurizing the case like having all fans pump air in the case and the air will find it's way out through all the holes, etc. Can I get some opinions on the subject? Thanks.

Almost universally front=in and back=in work. For the side, trial and error will reveal which route works better