chinux23

I have ATI5970, it works fine in Mountain Lion except the QE/CI support (which is working for Lion and Snow Leopard). I think I might need to add the CardID and Vendor ID in the AMDRadeonAccelerator.kext. But 5970 belongs to Hemlock family, which is not listed in the AMDRadeonAccelerator.kext. I tried to add it to Cypress family, but fails to boot up. Is it possible resolve this? Thanks,