my mates pc has what I think is a graphics card failure, but want to check before spending a lot. When he boots up it give what sounds like 1long and two short bleeps. The M/B manual does not give any info about bleep codes. When I plug in a headset it sounds like it says DDA error. I can't find any info on this error code. The graphics card is an ATI x1950 and all we have is a blank screen.
Sorry I should have said I have not got a spare PCI express card to test. Assuming it is a card failure he wants to buy a top range card and is looking to spend £300 so wants to be sure it is the card not M/B problem.
My first A8N SLI Deluxe did that and I replaced both graphics cards, only to have the same thing happen again: it turned out to be the motherboard, not the cards. First, try the card in another PC to rule out the card itself being the problem - it might not be; I seem to remember that this was an issue this model. You might be looking at a new mobo.