Just built a system today with an ATI X1959 Pro. Systems comes on but no video. There's power to the card, but nothing on the monitor. Tomorrow I can try a different card, but my question now is whether both the DVI connectors on the card are the same... should it matter which I connect to? And since I can't currently find my DVI cable, should using the supplied DVI-VGA adapter work on either of the card's DVI? (this is running through a KVM that I know works because I turned off a working machine to put this new on on the same cable.)
I'm also interested now: I have a 975XBX, E6600, X1900XTX and my PC suddenly does not want to boot anymore. I did a complete rebuild last thursday (cleaning the PC), and then reassembled everything. PC was fine until yesterday morning. Ii did not want to show anything, the screen just stays off.
So, I fiddled and then it started. Shut down, restart and the same again - no post. I've replugged all power to mobo, gcard, memory (512x2 + 1 gig in dual channel - Corsair Value) in/out and the problem stays. Now and again, I get a post and windows starts. I play a game or something - no problem. But when I bump the case or fiddle with the power cables, it freezes and I struggle to boot up again (and everything is secure).
I emailed OCZ and it seems to be one bad memory module. With only one stick in, it works OK. With only the other in, nothing happens. OCZ support was very quick and helpful. Now I'm waiting for an RMA. I thought this was GOOD memory!!!