Do you have a reference blower-style Vega 56? I had a similar problem with my Vega 64. Sometimes it would even crash to a black screen with a <100% power limit. I ended up repasting it with PTM 7950 and not only did it let me crank the power limit to the max, but it made it so that with the right fan curve, it wouldn’t thermal throttle at all. Before it was thermal throttling even with the fan at 100%.
Just something to consider. You can also flash the Vega 64 VBIOS to gain a little extra performance. They’re still pretty capable little cards, I kinda regret selling mine.
Do you have a reference blower-style Vega 56? I had a similar problem with my Vega 64. Sometimes it would even crash to a black screen with a <100% power limit. I ended up repasting it with PTM 7950 and not only did it let me crank the power limit to the max, but it made it so that with the right fan curve, it wouldn’t thermal throttle at all. Before it was thermal throttling even with the fan at 100%.
Just something to consider. You can also flash the Vega 64 VBIOS to gain a little extra performance. They’re still pretty capable little cards, I kinda regret selling mine.