[damien c]

Does the motherboard have a 4 or a 8 pin socket next to the cpu?

If it has a 8 pin but 4 coverd have you removed the cover and tried it with all 8 pin's connected to the board from the PSU?

I would 1st try disconnecting all the drive's from the board and see if it display's a image or not on the screen when the graphic's card is connected, then if it does connect each drive and try again 1 at a time and see what happen's, if you still get no signal then I am certain it will be a faulty board and or graphic's card but more than likely the board alone.

Have you used the correct lead to the graphic's card, not trying to say your stupid but if it requires a 8 pin power connector just make sure you have used a pci-e not a 8 pin cpu power lead.

If all lead's are correctly installed and drive's etc and you still get no display on the monitor, try another graphic's card if you can and try the new graphic's card in another pc to rule that out.

Or your other option is to send the everything back and get them to test everything and replace anything that might be faulty.