Thought I would add an update to the sorry saga of this graphics card, which I must add is the most expensive GPU I've ever bought and easily the worst, even though it ran well when it worked!
After the experience above I got the card back and it worked fine for a few months, then in May it suddenly stopped working again. Same as before completely dead, no warning, no artifacting just stopped working with zero signs of life. Would assume same problem but obviously can't tell so arranged another RMA with Overclockers. Again they sent it back to be repaired, again on day 27 had heard nothing so rang to check, they had heard nothing from Gigabyte so would chase and amazing next day they said it had been repaired and it got sent back to me. Sceptic in me finds it amazing that the card suddenly appears only after I chase but it may be coincidence and Gigabyte might have sent it back on day 28 both times. Anyway card was 8months old by this time and over 2 of these months it had been in for repair, 25% down time!
Put card back in worked fine, one week later it goes again, same problem. So rang Overclockers stating as this is the 3rd time the GPU has broke with what seems to be the same issue the card is either a dud (it is a revision 1.0) or Gigabyte isn't fixing it properly and I would like a replacement. They said ok and please send it back, however our system is down so we'll send you an email later. Nothing arrived so next day chased, they sent the RMA email there and then and I sent it back via DPD drop-off. Got a note from DPD saying it had been delivered ok so was hoping to get a new card within a few days... nothing... chased Overclockers who then said they hadn't received it so can I check with DPD. I checked with DPD and got tracking info stating when it arrived at Overclockers and who signed for it. Rang Overclockers back who then said ok not your problem we will get you a new card out... nothing... rang back a few days later and they then said they need to investigate where it has gone and it will be a week...
Not impressed and wondering what my options are here. I'm hoping I get a new card by the end of the week but based on my experience so far am thinking that may not happen at least without me chasing which I shouldn't have to do.
Tom