MacUser2525
Suspended
you don't need a psu with 8-pin cpu power connector, 4 pins will be fine. All motherboards I've seen can be powered by 4-pin connector, even when they have 8-pin connector, no problems there, it fits and works.
Could be but that seems like a lot of amps to be drawing on the one cable. If I remember it correctly the i7 cpu family uses ~130w so 130w/12v=~11a through the one cable as opposed to ~5.5a with the two as most of those connectors are in reality two 12v lines that can be split apart to power the older 4pin connectors.