i ordered a new 530 watt psu to power my pc because of a graphics card i got from a friend ( ati radeon 1gb ddr3 4800 series) and when i connect the psu the standby light turns on but if i hit the power button nothing happens. i know the psu is not faulty because i did the paper clip test and im currently powering my graphics card only via the new psu and the rest of my pc with the old psu. also the psu is a rx530ss atx psu. any suggestions so i dont have to run two psu at once??