My rtx gamerock 3080, throttling if i use fan less 100% and then 700 overclock on memory.
It always uses 100% coolers (If autofan enabled) in eth mining (even without memory overclock)

I have 2 Gamerock cards, one does 104MHs stable other can do only 100MHs stable.
I have fans set to 55% and power limited to 200W. Less power means less heat.