Can a fan control adjust the fan inside a PSU?

If you feel like disassembling your PSU and hot-wiring it to the fan controller, sure!
I would not recommend it though.
Most PSU's are designed to ramp their fan speed up as needed to keep it self cool.
Stopping this from happening could result in your PSU self destructing ;)
 

LoneWolf_53

Distinguished
Dec 17, 2009
365
1
18,810



Not unless you are into taking risks and voiding warranties. :D

I agree with the post above. Don't do it!