I dont think its under warranty, does XFX give more than a year? if so maybe, if not no.
Just tried taking the card out, sprayed a bit of air in the pci-e slot, put it all back together and no dice, could the PSU have crapped out? The card needs 450w 24a and the PSU is 550w 25a (it might be more than 25a) so it should be ok shouldn't it? I'm assuming BIOS wouldn't need 450w of graphical fury to be displayed