ok, i have tried jumping ever power connector i can and will not boot up, when i plug in power cord to psu the MB does a little test and has flashing led's 1 suppost to flash blue, it does and 1 that is suppost to flash wither blue-gree-yellow and flashes green signaling no major system problem. i have a 24 pin connector and 8 pin power connector plugged in, i dont have an extra psu with those on it to test....ohh wait i do lol, my new corsair has those connections so i can see if it is the psu....