I have a bfg 450 watt power supply it says that I need a 10 amp 250v power cord but all I have a 10 amp 125v powers cords. Should it still work, atleast power the fan? When I plug it in and connect the green and black wires the fan doesn't even come on. Is it just the cable? My dad recently gave this to me from a pc he built awhile back that's been sitting in the shed. Don't want to spend money if I don't have to but I'd like to use this power supply If I can it has 150 more watts than the power supply I'm currently using.