Dude, did you look s=close enough?From here, it looks like the mobo power is a 20 pin psu cable on a 24 pin mobo I see 4 empty holes at the right.If that's out of the box, then F those a-holes.HP is bljirant for their servers, but the desktops suck, a friend of mine has the same LP4 to sata converter cable but has no more free power cables, he needs to get a splitter .