If you cannot control speeds of the fans plugged into the Phateks PWM Hub, the MOST likely explanation is that the Hub is not getting a PWM signal to use. Re-read my second paragraph above. To shorten to a "do this" form:
1. Make sure one of the fans is plugged into the white Port #1 of the Hub.
2. Make sure the cable from the Hub that ends in a female 4-pin fan connector is plugged into one of your mobo's SYS_FAN ports. NOTE which one this is.
3. Boot into BIOS Setup and go to where you configure your SYS_FAN ports. See your mobo manual, page 3-43. Set at least the one port you are using to operate in PWM Mode, NOT in DC Mode. SAVE and EXIT.