i just got a b250 mining expert motherboard and a 2000w power supply. now i was wondering if that would be enough to run one section of the motherboard or if i have to have all 3 power supplies plugged in at once? it seems i should beable to run part of the board with 1 power supply but i am not 100% sure about that. and i was wondering in total how many watt would i need or should i need in total for the whole board? any feed back on the subject would be much appreciated.