VRAM could be faulty, is the card still under warranty? You might need to RMA it back to the supplier/manufacturer.
I had the same thing recently with a brand new MSI R9 280x, I feel for you bro.
Yes it's under warranty as it's brand new. And I don't think it's running too hard or anything. 430 khs only at 65 degrees celcius (asus r9 270x)... How I can know which card it is? It's card 1 in cgminer...
And what can I say to the supplier? As I don't think they like if I said I use it for mining zeitcoins..
If it's card 1 then it will probably be the second card down (top card is usually card 0). Not sure about the supplier you went to, but mining on a GPU won't void your warranty so you should be fine returning it.
But before you return it, try turning it down a bit first. Drop intensity down by 1 for an hour and see what happens.
Ok intensity is now down by 1. My cards are now running 10 khs lower. The SICK and DEAD happened only once in 3 days. So should I wait another 3 days to see what happens? How can I only manage this GPU 1, not all of them as now all my cards are intensity 18, I only want this shit card to be 18
What does "R" mean in cgminer?
This sick card has R 32 but the other 2 cards are R 0? What dows that mean?
there is away to do what you asking but its a nightmare to manage/setup just no suggested haha specially when you start getting more rigs! sacrifice those 30kh! i turned my rig which was giving me same issues down from 460 to 445 so I know that feel.
Someone here, I can't remember who, was amazed how low hash my r9 270x has (430khs each) and I know they could run at 450 or even more but maybe I just run them now at 420 each just to be sure they live and don't die I would organize them a funeral if they died