Sorry to dredge up this thread, but this CHL OCP removal firmware should work for the EVGA Classified 560 Ti 448 card that uses the GTX480 PCB, correct? I've verified that it is in fact the same CHL 8266 IC on the cards.

I think I'm running into OCP at 985MHz on my core when my volts are turned up to 1.213v. I encounter a hard wall at 985 where things are 100% stable and then at 986, I can't run ANYTHING.