Hi, my PC is quite an old one: running an Intel i3-2105 + DH61AG on High Sierra. Everything is fine except it cannot be upgraded to Mojave. Recently I changed the CPU to i3-3225 (w/ HD4000) hoping to do the upgrade. All is good except the HDMI audio is gone. I've tried many ways but still no luck. Could anyone please help me?
1. No HDMI Audio
2. macOS version/motherboard model/BIOS version/processor/graphics
3. tried Multibeast, no HDMI audio; then followed method A, still the same.
4. Copy of IOReg - IOReg_v2.1 (Tools 2.) File: Alfred’s Mac mini.ioreg
5. Terminal - 4 commands:
ioreg -rxn IOHDACodecDevice | grep VendorID
ioreg -rxn AppleGFXHDADriver | grep vendorcodecID
All files zipped and attached. Thanks.