Hi
@scope666 I've got a slightly different mobo than you but the same CPU. In BIOS, Primary is set to PEG (for my Radeon 6800), and iGPU Multi-Monitor is Enabled (but no monitor is connected to iGPU).
I had a hard time getting accelerated H264 video decoding using Dortania's recommended headless ig-platform-id of 0300C89B; Hackintool would just report "Decoder Failed". Even though I don't have a monitor hooked into my iGPU port, I checked in the OC 0.7.3 EFI you posted, and switched to your ig-platform-id of 07009B3E (and also your device-id of 9B3E0000). (Since I'm using iGPU as headless, I didn't add any framebuffer connectors or memory items).
After reboot, Hackintool now reports VDA Decoder "Fully Supported", so I'm happy with that, but I notice the change has dramatically increased my boot time, during which the Apple logo bootscreen disappears and my monitor completely blacks-out for about 60 seconds. That's about 55 seconds longer than the monitor "blackout" time when I was using 0300C89B (without any device-id). I can live with the added delay caused by using 07009B3E, but am just curious if you could think of anything I could do to eliminate or reduce its 60-second blackout.