Hey everyone, I just bought some new fans for my tower but i dunno which way should i have them to blow the air in or out. So far I have 2x 120mm, one on top of the tower and one in the front. Also have 2x 80mm on the back of the tower. So far my friend told me that I should have both the 120mm blow air OUT of the system while on the back fans I should be blowing in cool air into the tower. Is he right? I want to have my inside of the tower to be coldddd... well hopefully to stay at 24-26.. cuz previous I had only 2 fans and it stayed at 26-30 which is ok i guess but colder is better especially when you run it almost 24/7 
Thanks
Thanks