anyone know the thermal limit of the 780 Lightning?
My issue seems to be when the card heats up to around 75c, it begins to artifact

VRM/PCB/Memory temps are in the low 50's
So looks like to clock much higher ill need better cooling.
Was able to run at almost 1400MHz, but once it got into the mid 70's it began to lightly artifact, with high 70's to low 80's it would crash