For Audio:
-Download Opencore Configurator
-under UEFI, check the box enabling 'AudioSupport'
-under tab Protocol Overrides, check the box enabling 'AppleAudio'
-In ACPI, Patch tab, make sure you have rename AZUL and HDAS to HDEF
For Video RAM:
-In config.plist under DeviceProperties-Add-[your PCIROOT], make sure you have the section 'VRAM,totalsize' Data type with a value of 00000080 00000000 for 2gb or 00000040 00000000 for 1gb, as you can see it is proportionate so edit the 4 or 8 to your need
