Chris,

Indeed search for those bin files and delete them, then change your tc to 8192.
And with that engine and mem speed I hope you are watercooled.

I run that card at 1050/1500.

Edit: and set powertune to a positive value; mine is stable at 15. Yours is at -10.
And setx GPU_MAX_ALLOC_PERCENT 200?
200%? Mine is at 100%. Runs fine.