macmini g4 upgrade

This thread is dedicated to installing/running Big Sur on the HP EliteDesk 800 G4/G5 Mini PC. This thread is derived from the original Catalina Guide and will gradually replace the Catalina guide and the Big Sur Guide Thank you to deeveedee and everyone else who has contributed to the previous...

hey there! any ideas on throwing away the guts from the old macmini to install something more powerful? can't believe small motherboard companies haven't seized this opportunity.