Yeah, i have 512.77 like recommended on T-Rex on Github.
My OC settings were constantly good with the older Version of Nicehash or T-Rex with their 70% unlock.
When i set my Memory Clock on anything over 1150, it is unstable or crashes instantly. My Card is OC from stock. Thats why i chose this oc profile.
And like i said, it even crashes even without any oc or only Power limit set on like 75.