Ok, so I got ATIFlash to run form Booting by disk, but it is not seeing the RX580, it is only seeing the original video card ( have to leave it in otherwise I don’t get the boot screen when holding down option)
> On Apr 1, 2020, at 10:59 AM, Eric Auer <e.a...@jpberlin.de> wrote: > > > Hi! > >> Would that work if I have a second graphics card ? > > To be honest, I am pessimistic. I once tried to use > the real graphics card of a commercial VMWare server > workstation for GPU calculations by making it visible > to the OS inside the virtual computer and just got the > ability to crash the real hardware :-p I actually had > more luck to tune a DJGPP app into using 2 PCI or AGP > graphics cards simultaneously by PCI bus config tricks. > >> If the Mac Pro 5,1 would let you boot from USB, >> this wouldn’t be an issue. > > Or from CD or DVD, but I guess the Mac firmware has > never introduced PC compatible BIOS since they went > for PC compatible CPU? So, as said, you would have > to first load a CSM BIOS layer and I have no idea > whether that ever has been done successfully yet? > > Given that Mac are a lot more expensive than PC > anyway, you could maybe just acquire any simple > new or 2nd hand PC with the right slot (PCIe?) > for the graphics card, plug it there, boot DOS > from CD or USB, update your graphics BIOS, put > the graphics card back in the PC... Few 100 USD > should be plenty. Or of course ask any friend or > shop whether they let you use their PC for the > task, which should take at most a few hours to > figure out and then just a few minutes to do? > > Regards, Eric > > PS: It surprises me that you have no Mac version > of the VGA BIOS update installer tool available. > Maybe you just need the right Mac terminology to > find whatever Apple calls the DOS tool you have? > > > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
