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Will a fan controller be worth it for me? - Page 2

post #11 of 24
i recommend rheosmart6 since you can take the speed controls from a PWM header and apply it to all of the fans you have hooked up to the rheosmart6 controller. pwm header reacts to cpu temp so if your cpu gets hot, the fans spin faster.
post #12 of 24
Here is the key thing you need to remember about putting fans on a fan controller

Amps x Volts = Watts

So a 12 volt fan at .2 amps would be 2.4 watts so a 30 watt fan controller can handle a ton of fans per channel thumb.gif
 
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post #13 of 24
Thread Starter 
Quote:
Originally Posted by glinux View Post

Here is the key thing you need to remember about putting fans on a fan controller
Amps x Volts = Watts
So a 12 volt fan at .2 amps would be 2.4 watts so a 30 watt fan controller can handle a ton of fans per channel thumb.gif

thank you for this biggrin.gif plus rep! very helpful.

I think I'm going to order the fan controller and if the stock fans still suck, order more.
post #14 of 24
Quote:
Originally Posted by driftkidd2323 View Post


thank you for this biggrin.gif plus rep! very helpful.
I think I'm going to order the fan controller and if the stock fans still suck, order more.


There is one more piece of information that you should know.

 

When a fan starts up, there is a current surge for a brief moment of time and this can be huge.  Subsequently, the current drops down when the fan is running.  This varies from one fan to another. 

 

Take the popular Gentle Typhoon 120mm 1850rpm fan for example:-

At startup, 0.36A x 12v = 4.32W

When running, 0.081A x 12v = 0.97W

 

So, do not get too close to the max rating of a channel. 

 

 

 

post #15 of 24
Thread Starter 
Quote:
Originally Posted by windfire View Post



Quote:
Originally Posted by driftkidd2323 View Post


thank you for this biggrin.gif plus rep! very helpful.
I think I'm going to order the fan controller and if the stock fans still suck, order more.


There is one more piece of information that you should know.

 

When a fan starts up, there is a current surge for a brief moment of time and this can be huge.  Subsequently, the current drops down when the fan is running.  This varies from one fan to another. 

 

Take the popular Gentle Typhoon 120mm 1850rpm fan for example:-

At startup, 0.36A x 12v = 4.32W

When running, 0.081A x 12v = 0.97W

 

So, do not get too close to the max rating of a channel. 

 

 

 

So should I leave like a 5w definite barrier? What would happen if I over loaded a channel?

Sent from my SGH-I777 using Tapatalk
post #16 of 24
Quote:
Originally Posted by driftkidd2323 View Post


So should I leave like a 5w definite barrier? What would happen if I over loaded a channel?
Sent from my SGH-I777 using Tapatalk


KABOOM! your entire rig blows up..

 

 

i kid, might not be a good thing for the health of the fans but wont be the end of the world imho

 


Edited by DF is BUSY - 1/29/12 at 11:44pm
post #17 of 24
Quote:
Originally Posted by driftkidd2323 View Post


So should I leave like a 5w definite barrier? What would happen if I over loaded a channel?
Sent from my SGH-I777 using Tapatalk


When you overload a channel, what happens will depend on the amount of overloading and the 'quality' of the fan controller.

Some fan controllers have little heatsinks to help dissipate the heat and this design can buy the brief time needed to pass the current surge moment.

 

Also, the wattage rating of a channel may be modestly stated by the manufacturer.  But this may or may not offer some headroom.

 

I suppose if there is no such 'headroom/buffer' and the overloading is huge, then the circuit/transistor of that channel can be thermally damaged/blown.  This should be the worst case scenario.

 


Edited by windfire - 1/30/12 at 12:06am
post #18 of 24
450

as you can see, each channel has its own heatsink so it's not going to be a huge problem if you overload them on the initial surge. most modern fan controllers are at least 20w per channel so you can safely attach 2x any fan that is below 2000RPM (less then 0.8 amp) it's not till you get into the high RPM fans that you have to worry about overloading a modern fan controller. since your main concern is silent, and NONE of the high RPM fans are silent anyway, they are mutually exclusive and you shouldn't run into that problem to begin with.
post #19 of 24
Thread Starter 
Does anyone know if it will be difficult to run multiple fans on each channel? Or can I just plug in two fans?

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post #20 of 24
depends on the fan and the controller you end up buying
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