- Oct 26, 2013
- MSI B250M PRO-VHD
- RX 570
Your EFI folder works, I can play HEVC 8-bit video's without stutter. Great. I can hopefully adapt your EFI folder for my purposes.
But: I get an error about iCloud credentials/login with your folder. I tried pasting in my SMBIOS settings, but that doesn't stick. Hm. I vaguely remember this being a problem with NVRAM and Skylake mobo's...
If my EFI folder work fine with your mobo, then most probably cause should be on CPU PM, may related to BIOS PM ssdt sub-tables.
Some mobos may have stuttering issue while high bitrate 4K HEVC video playback.
My Giga H110M-H+ SKL IQSV have above issue when using native XCPM or Apple HWP for CPU PM.
The only way to resolve this issue for me, completely disable native XCPM control and use Clover HWP instead for CPU PM.
My others mobos ASUS B150, MSI B150M/B250M, do not have this issue.