Which way is the case fan supposed to be facing in a computer? Is it supposed to be facing in a way so that it pushes air out of the case, or brings it into the case?

Just want to make sure i put it in the correct way :o

Should have 1 blowing in from the front and 1 blowing out the back, so heat can escape.

Well you can have as many as you like really but the front one(s) (which should at the bottom) are supposed to be facing in to blow cold air in. The back one(s) should be facing out to blow hot air out.

I am not sure how many fans you have but have a play, I personally had 2 fans in the front and 2 in the back, I have now taken out the front 2 as it made no difference to the temperature and the sound annoyed me. So really you need to swap them about etc to see what suits your case. But always front facing in, back facing out.

Originally posted by Gold_Disk
I personally had 2 fans in the front and 2 in the back, I have now taken out the front 2 as it made no difference to the temperature and the sound annoyed me.

Quite rightly too, all you need is ventilation and ALL fans extracting at the top, there is no point in having a intake fan when the extractor fan draws the same ammount of air in that it blows out, it does not matter where the air is drawn in as long as the fan/s extract at the top, you can remove an expansion slot cover etc. Gold_Disk if you re installed the 2 fans as extractors you could run them all at half the speed and all four would be much quieter than the two you have in

If you include my PSU I have ,4X70mm 1X80mm, and 1X90mm extractor fans they are controlled by a 5 gang 12V/off/5V Baybus
I can switch on the , 90mm, 3X70mm at 5V, and they can not be heard above the CPU cooler which is not that loud, I can in turn switch any of the fans up to 12V whenever the Digital Doc displays the case temperature above the room temperature