Have a six card Radeon VII rig - using teamredminer and these clock settings:
Core Clock: 1750 - Core Voltage: 950 - Mem clock: 1100.
The rig is mining fine with ~95 MH/s per card - but after 2.5 hours Card0 starts dropping power and hashrate. Checked temperatures and they look fine (other cards are hotter than this one). The other cards have no change. Rebooting the rig and everything is back to normal for another 2.5 hours and the same thing happens again.
Any help mush appriciated!