Guys, I'm still dropping to 1500 per card (two vega 64s with 16GB RAM) after 20-24 hours. Am forced to restart everything to get back to 1900 per card. Can anyone share their insights as to what I might be missing? I have the cards running on a rig I remote into, so no displays attached at all (not even to the onboard video). Maybe I need dummy HDMI dongles? Thanks for any help.