Hi,
I’ve been trying to modify the BIOS to enable above 4G decoding on my Dell Optiplex 9020 (Dell 0PC5F7 A02 Motherboard) and maybe reBar.
As I understand it, the chipset should be able to allow above 4G decoding, being equipped with a Haswell chip (i7-4770).
I’ve tried using xCuri0’s method to find the hidden setting offset and modify the hex value in grub, but to no avail. It seems the setting can be found by UEFITool, but the string can’t be found once I extract the indicated IFR file.
Is there a potential ‘fix’? Or has anyone had success using other methods?