you should connect the 24pin atx connector and put in a paperclip or a little piece of power cable in the green and black wire like in the picture , i`don`t know if your fan is going to spin i think it will i have corsair cx 750m and when i put in a paperclip in my green and black wire the fan spins without even connecting any device to the psu..



so do this:
disconnect the psu from the wall socket
connect 24 pin atx
put paperclip in green and black wire
put some electrical tape on top of the paperclip (24 pin connector)
make shure every thing is connected to the HEXc
power on psu
happy hashing