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3 questions about case fans..

T

thenerd

Limp Gawd
Joined
Jul 19, 2004
Messages
352
1. do fan grills really make THAT much more noise?

2. side exhaust, good idea or not?

3. 3 intakes, 1 psu exhaust at top, good?
 
1. With my experience, no. There may be a few that have like sharp edges creating a "whistling" effect, but with the ones I have used, no.

2. Side exhaust? You mean through the side panels of the case? That's generally a good place for an intake. It allows fresh air to be pushed in near the cpu where it's needed.

3. I'd say no. You'll have positive pressure in your case (where negitive pressure is usually desired) and you won't be making those fans efficient. It will only suck in air as fast as it can blow it out. I say 2 intake and 2 exhaust. If your psu is your only exhaust, it'll be sucking in overly-hot air from the case, not allowing it to cool properly.

If you can, get an intake in the front of the case at the bottom if you can. Put an intake on the side panel near the cpu if you can. Keep the psu exhaust along with another exhaust at the rear-upper part of the case.
 
Some fan grills can be quite loud, many of the ones that everyone seems to think look cool really impede air flow and make things louder. The turbelence they introduce can make some sound, or barely make any, it really depends on the fan grills.

As for the other things, stick with the tried and true design. Intake in front. Exhaust in the back. Side panel intake. Any top blowholes exhaust.
 
well right onw i'm getting the best temps off a side intake, back intake, and top psu exhaust. i have a dual fanned psu, so i think this is good.
 
thenerd said:
well right onw i'm getting the best temps off a side intake, back intake, and top psu exhaust. i have a dual fanned psu, so i think this is good.
Click to expand...
back intake is bad if its near any exaust... think about it... your sucking in the air that you just exausted
 
Actually, that's not always true. Remember, your exhaust is pushing out hot air. hot air rises. Your intake is taking in cooler air from below the hot air. Your PSU is placed at the top of the case, blowing air out. Your next closest fan is at least 2-5 inches from it depending on your case. So the airflow you have going out is not really close enough to head right back into the PC again. Just because it's getting blown out further from the case also, while trying to rise up.
 
light a stick of inscence and use the smoke to trace the airflow around the fans.

insens
insense
insince
inscince

nope, it cannot be spelled properly on this keyboard.
 
honegod said:
light a stick of inscence and use the smoke to trace the airflow around the fans.

insens
insense
insince
inscince

nope, it cannot be spelled properly on this keyboard.
Click to expand...

incense?
 
If you're talking about that stamped fan grills (on the case), yes they make quite a difference.

In temps that is =D

I don't know about noise, but after cutting the stamp grills from the 2 intakes at the front, and the 2 exhaust areas at the back, my temps dropped from 29C's to 24C's.

Yes, its definitely worth it if you got hot case temps, but I like keeping things cooler without the need for exessive noise.

I'm getting 24C's using 4 Panaflo L1A's, and one of those is actually @ 7V (b/c intakes are almost always louder--yes even with the stamped grills cut out, I thought i'd run one a lil slower to reduce the noise there).
 
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