QUOTE(sHawTY @ Sep 9 2006, 10:38 AM)
Exhaust fan have to be slow, but not to slow...
But the intake fan is better if you use a high cfm...
The intake fan that i mean is the fan on the front of the casing, the hard disk bay...
For the sidewindow fan, [if you have so] don't use a high cfm...
Use a slow one also as this would make the fan suck the hot air that has just been thrown out by the exhaust fan on the rear of the casing...
Got it?
wat ur trying to do is create a positive air pressure in ur case la bro... more air in less air out. generally its an accepted thought that negative pressure is better than positive. more air out than more air in. so if ur gonna play with the pressures its better to have more air out aka negative pressure so the hot air wont stay in the case too long and end up being recycled by the HSF.But the intake fan is better if you use a high cfm...
The intake fan that i mean is the fan on the front of the casing, the hard disk bay...
For the sidewindow fan, [if you have so] don't use a high cfm...
Use a slow one also as this would make the fan suck the hot air that has just been thrown out by the exhaust fan on the rear of the casing...
Got it?
negative pressure will suck out all the hot air out faster. but the bad thing is itll suck all the cold air in from each and every crack in ur case... meaning dust will be coming in from everywhere as itll be sucking them in too. good for temps bad for dust.
positive pressure will be pushing cold air in and also force the hot air out thru all the cracks in ur case... this is good for dust control coz ur dust intake will be concentrated in 1 area. good for dust...not so good for temps.
the best of course is to have a balance between positive and negative. difficult to achieve sadly.
personally id prefer to setup a positive pressure in my case... coz my room is friggin dusty. but its at negative now by the way.
Sep 9 2006, 12:09 PM

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