Hello, i've been following this thread for a while. I have a similar build with 1 Vega 64, and with all the info discussed here, it was pretty easy to run my hack. I'm currently running the CPU stock with MCE set to Auto in Bios.
However i have a few issues and i was wondering if you've encountered them.
1) Currently, I'm using the MacMini8,1 SMBIOS, and today I've noticed the H.264 exporting does not work in FCPX. Has anyone else encountered this? Is there a fix for that (without changing the SMBIOS)? HEVC 8-bit works pretty fast, I think. iGPU is enabled and seems to work fine in headless mode. MacX Video converter show Hardware Acceleration: Yes, 170fps score in Cinebench.
2) I've tried with iMac18,3 SMBIOS, and the H.264 exporting works. But I noticed there is a problem with CPU speed stepping. Intel Power Gadget show frequency around 4.9GHz and stays around that frequency. On MacMini8,1 it fluctuates a lot depending on running tasks. Any fix for this one? EDIT: power management works fine after sleep!!!
3) I encounter random freezes when I stay away the PC for a few minutes or, sometimes, when I manually turn off the monitor and then i turn it back on. It may be related to app nap or something. Sleep works fine though. Any thoughts on this one?
4) This is no big deal.I have an Ultrawide 3840x1600 monitor and BIOS/Clover/Apple boot logo image is stretched. CSM is disabled, Windows 8/10 with/without WHQL, Clover GUI resolution didn't fix it. I'm using DisplayPort for the monitor, and my TV is connected to HDMI. May it be related to Display ort? Other solutions i could try?
Looking forward to your answers. And thanks for all the info you've provided so far. You rock!