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AjeeB

macrumors member
Original poster
Mar 29, 2010
81
1
everything just works great and smooth, but my question is how to get boot Menu or go into recovery mode !! without using ... modded and flashed card !! because my old HD6870 broken ! I can't get into recovery anymore !
is there any good modified flash bios for RX560 ?

thanks for help

Sapphire RX560 4GB pulse
 

h9826790

macrumors P6
Apr 3, 2014
16,358
8,341
Hong Kong
everything just works great and smooth, but my question is how to get boot Menu or go into recovery mode !! without using ... modded and flashed card !! because my old HD6870 broken ! I can't get into recovery anymore !
is there any good modified flash bios for RX560 ?

thanks for help

Sapphire RX560 4GB pulse

You can't use boot manager.

Depends on your OS version (and recovery partition version). If your RX560 is supported OOTB now. All you need is just hold Command + R during boot to get into the recovery partition.
 

AjeeB

macrumors member
Original poster
Mar 29, 2010
81
1
Screen Shot 2017-12-12 at 14.05.08.png
hey, TY for reply
OOTB ... it should be special for MAC out of box?

it's a PC pic-ex Card ! everything works nice only the boot Manager is black !
my Old Radeon HD 6870 , I flash it with modified ROM and all works even BootManager
--
I want to upgrade to High Sierra ! that's all , and using a (
macOS Sierra Patch Tool)
to bypass prevention installation
BR
 
Last edited:

fiatlux

macrumors 6502
Dec 5, 2007
351
137
View attachment 741679 hey, TY for reply
OOTB ... it should be special for MAC out of box?

OOTB means it works w/o any additional driver in the graphical environment, because MacOS now has the necessary AMD drivers included as standard.

But to display anything (such as the boot menu) before the drivers are loaded, you need a graphic card with an EFI ROM . A PC card usually has a BIOS or UEFI ROM and will not properly initialise without drivers.

In short, it is not possible to show the boot menu on a Mac if your graphic card does not have the proper EFI ROM.
 

AjeeB

macrumors member
Original poster
Mar 29, 2010
81
1
OOTB means it works w/o any additional driver in the graphical environment, because MacOS now has the necessary AMD drivers included as standard.

But to display anything (such as the boot menu) before the drivers are loaded, you need a graphic card with an EFI ROM . A PC card usually has a BIOS or UEFI ROM and will not properly initialise without drivers.

In short, it is not possible to show the boot menu on a Mac if your graphic card does not have the proper EFI ROM.
TY,
So I need another Card ! and no chance to have EFI-Flash file for this CARD

thanks
 
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