hello I'm having problems with my new sapphire rx vega 64 liquid cooled card, I currently have the latest drivers (but I've also tried earlier), updated windows 10, with the r9 290 everything works perfectly, with vega i have freeze and black screen and audio interruptions. I connected the card to an onkyo 4k amplifier via hdmi. The board also crashes in power save, as a power supply i have a corsair ax860i.
Is this a bad card or is it a driver problem?
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If i had to take a guess on the little information you provided, i would say potentially faulty hardware, assuming the black screens happen without the amplifier connected.