Need help with case fans!

[greatgreenman]

The only info I have of my casing is that it supports 120mm and 140mm fans. But reading online there's 2 pin and 4 pin fans that are regular and PWM?? My casing has a three speed fan controller, will that work with other casing fans?
Another thing: If I can only fit 1 120mm exhaust rear fan, will there be problems if I install 2 front 140mm fans?
Also, anyone with specific casing fans to recommend?

 

[Krabs.]

2 front 140mm intake + 1 rear 120mm exhaust is a very good combination

 

[derkaiser94]

Another thing: If I can only fit 1 120mm exhaust rear fan, will there be problems if I install 2 front 140mm fans?
Also, anyone with specific casing fans to recommend?

That's the way to go. Positive air pressure reduce dust build up within the case. Pantek pwm fans are as good as noctua fans but cheaper. Alternatively you can also consider the corsair fans which have a ton of variation for different needs.

 

[ZrE0_Cha0s]

Well I'm assuming that your case have a 3x 3pins fan output. You can get gentle typhoons. Or corsair.

 

[greatgreenman]

Thanks guys what about top fans? Do I need those as well? Also, what is all this 3 pin 4 pin stuff? Do I only need to worry about fan size or the PWM/standard thing as well?

 

[wacko]

it's better to let you motherboard control the fans than the casing fan controller, as typically you can set custom fan curves with a motherboard (check your manual), whereas casing fan controllers are mostly manually adjusted.

this will mean your choice of fans should be dependent on what kind of fans your motherboard's fan headers can control.

 

[jtjt00]

......get gentle typhoons.......

Yilong of PC Themes told me no more new stock of gentle typhoon coming in liao.

 

[DJSnip3r]

Thanks guys what about top fans? Do I need those as well? Also, what is all this 3 pin 4 pin stuff? Do I only need to worry about fan size or the PWM/standard thing as well?

You should worry more on the fan size, like what's the combination of fans you can use, eg. 2x140 or 3x120 are the usual for most(?) atx.

PWM (4pin) vs DC (3pin) is that PWM can operate at lower rpm while DC will stall out at a certain rpm due to the the fact that speed of the fan is controlled by the voltage supplied to the fan. Normally, case fans are 3 pins and may include voltage stepdown to reduce the rpm and therefore reduce noise. But if you want precise rpm (noise) control, then it's PWM.