* UPDATE * For some reason, after I applied the latest beta drivers, my GPU overclock settings started resetting again when waking up from sleep or restarting my rig. The trick above wasn't working. I got it to finally stick by first applying the change like before, but then turning my fan to manual within Crimson, applying the change, then reverting back to auto and applying it. That seems to have worked. What a weird software bug.
5/25/16 at 9:47pm