Casing Fan question

[dudleygb]

Hi guys,
I urgently need a fan for my casing today, for the rear of the casing. Anyone know of a brick and mortar shop thats got some decent prices? Pcint want R100 for a plain black one. I see online they can go for around half that. They say I need a 120mm, that right? I see online you can get a bling LED coolermaster for like R75.

 

[czc]

Where do you live, dude? I could just as well direct you to the one closest to me which is Cyber Range Systems in Bedford Center. 5mins walk can't get closer than that.

 

[dudleygb]

coolt thx, i'm on west rand, will go check them out, I hear ZAPS in Randburg commons also have

 

[PostmanPot]

Which case did you get dudleygb? I ask because IIRC you wanted the CM Elite, which comes with a rear 120mm fan.

FYI, rear 120mm fans should suck/blow air in.

 

[dudleygb]

Which case did you get dudleygb? I ask because IIRC you wanted the CM Elite, which comes with a rear 120mm fan.

FYI, rear 120mm fans should suck/blow air in.

Hi PP,

Yeah, I ended up with a Elite 334, it does have a rear fan, but my other casing doesnt, it only has a front fan, and things are a little too warm inside, and adding an extra fan or two cant hurt. My dont know what this other casing is, but I bought a 120mm for the rear. My next question was going to be which way, and thanx u answered already..lol

I also bought a front fan for the coolermaster, which direction should it be mounted?

 

[dudleygb]

this is what one dude says?

When installing your case's chassis fans, take note of the intake and exhaust orientation of each fan and plan your case's airflow pattern accordingly. Don't leave fan orientation to chance--it matters greatly which direction you install fans, because you don't want them working at cross-purposes. The usual airflow scheme in a tower case is to draw cool air in from the front using an intake fan or fans, push it across the hard drives and CPU-cooler region, and send it out the back or top via exhaust fans.

 

[dudleygb]

this seems one of the most debated issues, some ppl say creating lower air pressure cools the case, creating higher air pressure in the case prevents dust build up, some say in at the bottom , out at the raer, some say the other way around.....sheesh!!

SO far this seems to make the most sense

http://www.heatsink-guide.com/content.php?content=case.shtml

 

[PostmanPot]

The back fan should only ever suck out, I think, when the side panel of the case has a fan sucking in/blowing onto the CPU/motherboard. Also with cases where the PSU is situated at the bottom. Those cases aside, if there is no side panel fan, the back fan must do what a side panel fan would, and that is supply the mobo region with fresh air. Also, stock CPU coolers suck/push air onto the CPU/mobo, so a side panel or back fan sucking out would obstruct the CPU fan's airflow.