Hello, I'm building my own Hackintosh and I'm trying to get the xfx Radeon 6870 graphics card to work. Here are my system specs:

Snow Leopard 10.6.8
Motherboard: GA-Z68XP-UD3
Processor: i7 2600k
Memory: DDR3 1333mhz 16GB
Graphics card: xfx Radeon 6870

I used to use the GeForce 8400 graphics card and that worked perfectly, but I decided to upgrade. My problems with the Radeon 6870 are:
1. When I install my DSDT, all screens are black after the boot (-v) rendering the entire install useless.
2. Before I install the DSDT, I loaded the ATI framebuffer, ATIsupport, ATI6000controller, and ATY init. It only displays the monitor hooked up to the upper DVI port and mirrors the HDMI port. However, it doesn't detect the HDMI port as having a separate monitor.

I read on some sites that this setup is supposed to work out of the box and this is definitely not the case. Are there any other DSDTs or kexts that could potentially work? I tried reinstalling the system many times with different configurations and nothing works. Is there a step by step guide for this setup of what to install and in what order?

Thanks

I tried using GraphicsEnabler=no and I only get the top DVI port to work, everything else doesn't work.