Me with my card yesterday. Messing around with since 5am
And big problem i got with jumping memory clock:
it jumps like tard from 150 to 1250 and eventually card wil crash.
Atm I use 2 profiles in masi afterburner with locked clocks otherwise its unusable :/
2 week old windows 8.1 tried 3 different drivers with full uninstalls NOTHING.
Guess i need new bios :/