Cheers for reply. The said hiper psu ran perfect in system with a 8800GT, and psu swapped for 700w unit, however, the fan in 700w psu, is noisier than a xbox360, and the hiper was silent, and im aware of cerain hiper issues, Main question really should be, is the hiper enough for the gtx260 with the rest of the rig ?. Thanks.