i looked at the board and it appears to be four phase...probably the same as IP35 Pro...the Vdroop on the Tpower for a dual core is around 0.024v and for my QX9650, i see about 0.048 Vdroop; basically double the Vdroop of a dual core...makes sense since you have two more cores...the Vdroop is about equal for Quad CPU's when compared to the the IP35 Pro board but the Vdroop was higher for a dual core on the Pro board.

i believe this board is more suitable for a dual core to get high FSB and overclock...the quad overclock is about on par or slightly on the minus side with other boards.