How to control EVGA 980ti hybrid GPU (3 pin) fan that is connected with (4 pin) motherboard?

[shenwww7]

Hi,

 

I have a EVGA 980ti hybrid and I am trying to control the fan speed of the fan that is on the hybrid radiator.

So I disconnected the 3 pin from 980ti hybrid and connect it with 4 pin that is on my x99 Sabertooth.

PS: x99 Sabertooth only provide 4 pin fan plug (control)

 

The question is: "How to control the 3 pin fan's voltage through a 4 pin fan plug on my motherboard?"

 

Thank you!

[NinjaJc01]

I think it should probably support DC voltage control over the 3pin, I will check your manual for you.

EDIT: Any of the CPU headers do, and I should imagine the other headers do too.