Undervolting fan didnt work?

Ok brought myself a "7v Fan Speed Limiter" today and i cant get it to work.

it looks like this http://www.maplin.co.uk/Module.aspx?...ce=12&doy=17m2

I plug the molex into the power and the 3 pin into the fan, but it doesnt power up at all (the fan). Also, i have tried converting the spare molex on the other end with a molex to 3pin connector but that seems to be the full 12v as there is no slow down.

Help please :P

Can you fix the image please?

http://www.maplin.co.uk/Module.aspx?...ce=12&doy=17m2

Either than fan doesn't work full stop or the fan requires more than 7v to make it spin.

well the fan works. its a hiper 120mm hiperflow 1500rpm one.

I have also tried on a 900rpm sharkoon 140mm and a scythe s-flex 120mm 1200rpm and none of them work