one simple and easy method to follow is :

Rear side, blow air OUT. Follow the PSU.

All other sides, blow air in.


This is only basic reference. If you setup is very complicated then this rules may not apply. But for most cases, it will work.

what about the top..should blow out also right?

Yes it should be blowing out too. As hot air rises from bottom to top.

negative pressure should be avoided unless stated by your 3rd party hsf. this is due to negative pressure setup unable to cool your hdd unless u install heat sink/fin for your hdd.

basic guidance:
front : in
side : in
top : out
rear : out

* though, this guidance is just basic, and may vary some times. it'l be better to apply btx style if you're running on a hot gc.

** however, make sure the air flow OUTSIDE your case is also good enough for the hot air to move away, to avoid the front fan to suck back the hot air from the rear (*rare occurance, recycling of air). and make sure room temperate is nice.

I was having two 80mm for intake at front, one 120mm for exhaust and one PCI exhaust at the rear. I just changed top front intake fan from 80mm to 120mm and placed 1 more fan on top of my hard disk(used my hard disk to fasten it at right below the CD/DVD bay since there are no holes for screws) on my Centurion 5 casing for boosting the bottom intake fan.

Got 1C cooler after that. hehe

This post has been edited by TristanX: Apr 20 2008, 02:27 AM

it's better using this ratio 2:1
2 intake (double sided)
1 exhaust system (top).

wht u guys think?

lower : intake, upper : exhaust

front panel : intake
side panel : intake
rear : exhaust
top : exhaust

*Providing better ventilation
*Just like those ventilators in a tunnel (air moving in a direction)

side panel...near top d..shldbe intake or exhaust?if im not wrong..the cpu fan sux the cool air and let it go through the colling fins....so..we shld use intake or exhaust fan on side panel..which is near processor d...

I just put 2 exaust + 1 extra exaust from PSU= 3 exaust.

http://www.leapfroglobal.net/p-pl.php?id=a...l&series=azzura

guyz..this casing d...the hole at teh lower side d..120mm d...put intake or exhaust?

lower intake, upper intake, rear fan pun exhaust.

front fan should be sucking...and rear fan should be exhaust...side should be exhaust too

not true.. a good air circulation, side should be intake. rear and top should be exhaust..
unless u want to use car circulation, then all other parts intake except rear exhaust.
powerful fan put on rear would do the magic. lol..

im using this casing n planning to add fan on the side too..but then,since the fan hole is just below the air duct..n the air duct is supposed to blow out hot air from proc rite?so if the below is intake,wouldn't it be recycling the hot air from the air duct?

errmm.. im bad in english.. can u show us ur rig?

what do u mean?u wanna see the internal part or just my casing?is just the casing..it is as the link given..but but if u wanna see inside the casing..it might take some time..i dont have camera..

if im not wrong..teh cpu fan of e2160 is sucking air wor....zzz...using palit 8500 GT..the 120mm..used teh fan as intake...my GC idle at 57.....use as exhaust....teh temp at 54.....but...no add fan...55....but when i buy my como..the GC always stay at 53 for idling..so..maybe the dust bah.....planning to add fans too all available slot...including teh airduct..im going to change the air duct to intake fan...and change teh rear exhaust to more powerful fan..and...below the hdd there..got some lubang..rite?im going to put a fan tehre....as i dun have table or thing blocking the holes...zzz..i think u all cannot understand my english...maybe upload some pic later

How could you say the air duct at the side panel is exhausting hot air frm the processor? Think again. The fan on the processor`s heatsink is blowing air to the heatsink to cool it down. Means it is blowing in right? How could it blow hot air out through the side air duct? Besides, hot air has low density, so hot air rises. About the lower fan on the side panel, make it as intake. It helps in cooling ur GC. Yet, air intake through the side panel would be the best.

This post has been edited by impostius: Apr 24 2008, 11:36 AM

agreed with u plus make the hole on top of the casing to blow the hot air in the casing out