It’s supposed that you have the latest Boot ROM version 144.0.0.0.0. This guide is for those who want macOS Mojave + Windows 10 + modern GPU (in our case Sapphire Radeon Pulse RX 580 8GB).
What is more, none of them supports displaying of boot menu with 4k 60hz monitor connected. Well, some EFI bootable cards that support boot menu exist but they are released almostġ0 years ago and are really outdated. Supported, but it’s completely possible though not quite easy.Īnother challenge is that macOS Mojave 10.14 now implies using Metal-capable GPU while most of them are not able toĭisplay Apple boot menu (which you normally see holding the Option key) required to boot into Windows. Installing Windows is no longer officially It’s prettyĭisappointing considering how capable and upgradable these machines still are.
Classic Mac Pro 5,1 (or simply cMP, also 4,1 upgraded to 5,1) is now considered by Apple as vintage.