First the story: I'm currently using a 7770 with my hackintosh. My motherboard doesn't support OC at all so I cannot use factory OC GPUs with my PC (My 7770 is factory OCed but I downclock it in Windows using EasyBoost). If I try to use my card for prolonged periods without downclocking, it eventually hangs and I have to restart.
Now the problem: The hanging problem is also happening in my hackintosh. I confirmed by using Unigine Heaven benchmarking utility and it left my screen unresponsive in the middle of the benchmark.
Lastly the question: How do I underclock my GPU in Mac? I tried using ATIccelerator II but it isn't working.
Thanks a lot,