Its not only about fan orientation, but the fans aswell...

[Computer_Freak]

Hey guys

I have a Coolermaster Centurion 590 case, GTX295, and an Intel E6400 OCed to 2.8GHz, chilled by a CM Hyper 212 Plus cooler...

My fan configuration was, 3 fans exhaust (2 top, 1 rear), 2 intake (2 front).

All the fans in my case are the same, except my top fans. they are slightly more powerful, and move quite a bit more air...

now, as its summer here, i was getting temps as follows

CPU - 36/34 Degrees (Core 1 / Core 2)
GPU - 56 degrees
HDD - 35 degrees

(degrees in celsius)

i couldnt get temps lower than that.

Today, i decided that i will change the fans, so that the strongest are intake, and the weakest exhaust

so i swapped the top fans with my front fans, and wow, the results are amazing.

CPU - 30/27 degrees (Core 1 / Core 2)
GPU - 45 degrees
HDD - 24 degrees

if youre struggling with temps, make the intake fans the strongest, and the exhaust weaker, and you might get better results.

and my computer is more silent (i think its cause the faster fans are moving colder "denser" air, so they dont rev up as much...)

just felt like i should share that.

 

[diduknowthat]

So basically you went from negative pressure to positive pressure. It really depends on your case and such, but it's good that you found the better method in your case!

 

[Computer_Freak]

its still negative pressure

i now have 4 exhast, 2 intake.

hasnt really made a difference, but, it vents out the hot air that comes out of teh side of my GTX295.

so when i game, i think it keeps overall temps down as i dont have 70 degrees worth of hot air being vented in my case (granted, it was towards a grill, but the fan just removes more hot air)

but you right, its made a big difference...

 

[Bodaggit23]

its still negative pressure

Not necessarily. Just because you have more fans exhausting, doesn't mean you have negative pressure.

It's the amount of air going in versus the amount coming out. You said yourself you put your strongest fans blowing in.

Obviously you've created positive pressure, an ideal condition. :good:

 

[Computer_Freak]

but 4 fans vs 2?

and dont forget teh GFX card pulling air...

and i realised, its just one fan thats ramping at full speed (its connected to the mobo, and for some reason, fans work at full speed on the mobo...)

its the top front fan (blowing cold air directly onto the GFX card, and some toward the CPU cooler)

thats why my GPU and CPU have dropped.

but your probably right

honestly, im glad i did it.

best thing ive done temp wise...

now i have another question

what can i use as a dust filter?

im already using that sponge filter infront of the fans (it comes with the case, its whats behind the drive bay covers)

it works, but i still get a lot of dust. i now need for the top fans...