• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

Fan controller

I

ImAgainstIt

Limp Gawd
Joined
Dec 16, 2008
Messages
155
How can I make my fan controller control more than one fan on a channel? can I just be cheap and split the 3 pins into another fan?

Could I still achieve maximum volts on each fan or would the max volt be split between the 2 fans?

can i buy splitters?


I have the Scythe Kama 02.
 
Well it kinda depends on how you wire it up, the current needs of your fans, and the output of that controller.

I googled quickly and came up with several models that share a similar name so if you could be more specific on what controller you have it would be easier.

But yes, you can get "Y" cables and it will not limit the speed of your fans.

*or you could do a search and probably find exactly what you wanted to know
 
3 pin Y adapter. Make sure you don't overload the controller with to powerful of fans. I use these to run 2 fans off each channel on my 4 channel controller, works great.
 
Alright thanks, I found a 3 pin connector.

The fans are 12V each and the channel has 1 AMP. that should be enough for 4 right?
 
Yeah, in theory. I wouldnt push my luck though...
You can try it and see how hot the chips on your fan controller get.



"Once you make the white somke come out of the chips, its really hard to put it back in"
 
When you said double it, in theory each would be 0.48 A and I can only get 2? how'd you mean?
 
when you add fans with a "y" cable it is a parallel circuit. Therefore the resistance of the loads (fan) is in parallel and the currents are cumulative. by adding more fans you increase the current. 1 fan is .24 A 2 = .48A 3=.72A and 4=.96A.

since 4 fans is really close to the max of hte controller I would be leary of trying to put 4 fans on one channel. You risk burning it up.

*edit
I said double it because i thought you wanted to use 2 fans....
 
ah alright cool, I guess the only way to find out is to try. if I was to run it at max, .24A would the others slow down any?
 
Connecting in parallel, which is what you are doing, supplies 12V to the each fan. The speed will not be affected.

Ohms law V (voltage) = I (current) x R (resistance)

Since R drops in series, and V is constant (12v), I (Current) must increase and that is the reason you have to be careful how many you add.
 
ok but is pushing it to 96% going to work at all ? will the resistor or whatever degrade over time ?
 
it is most likely a variable voltage regulator. (IDK because i have never used that controller) In that case you need to hook 4 fans to it and test it. If the chip gets too hot to touch, it cant handle it, If it just gets warm and no hotter and it will be fine.

If this is a manual control (resistor) yeah, it will probably burn up the resistor eventually.
 
well im not sure how to help you out anymore other than telling you to search about different types of fan controllers

Not that it matters much
 
ok well thanks alot, i already have this fan controller, and fans, if it burns it out then ill see about another controller.

appreciate the help
 
Just made a makeshift splitter, the thing was getting pretty hot, think ill just do 2 per channel, thanks alot. also, its not the chip that gets hot but the big black thing.
 
ImAgainstIt said:
its not the chip that gets hot but the big black thing.
Click to expand...


You're gonna have to be a bit more specific. That doesnt really tell me what kind of component it thats getting hot. Does it have numbers on it, shape, number of pins coming off of it? A picture is worth a thousand words... ;)
 
ok its uh, a tall round thing, probably half of an inch long, quarter of an inch wide, black, silver top, cant see wires running into it.

has "f16v 220 uF16v" written


do you know of any basic 3-pin controllers that have over 1 amp?
 
thats a capacitor and no, its not good for that to get hott.

If you are just looking for manual control do a search for Rheobus or even just "fan controller" you will get several results. There are some that can handle up to 4 amps.
 
You must log in or register to reply here.
Back
Top