sometimes when i have similar things happen w/ everything turning on but no signal to monitor i can get it back by hitting the reset button a few times on front of pc. may sound wierd but one day i didnt feel like pullin it out to clear cmos so i restarted it, same thing, restarted it, same thing, restarted it, same thing, hit the restart button a couple times quick before it could even try to post and then wah-lahh itll post and i get in and put my settings stable and get out quick or just set them to defaults quick and start over. not tryin to get your hopes up here lol but figure what do you got to lose