(22-Jul-2019, 02:30 AM)Toto Wrote: ASRock J3455M - special UEFI!!!I would love to..

For now, just setup CSM and boot up the PC in legacy mode. BIOS is not going away anytime soon. Folks who already got this to work, please post a step by step HOW-TO here.
Or wait till I get my Ryzen server. That should give me another PC with EFI to play with. But there's no gurantee it'll work with the J3455M. Until then, there are other audiophile software that's better resourced, I highly recommend Daphile.