Many Haswell systems do not have the 4G decoding option, making it impossible to use ReBarUEFI at full size on them. #14 LGA1151 various issues with display output on a few motherboards. It's still ...
Many consumer motherboards have issues handling 64-bit BARs which are required for Resizable BAR to work at its full size. Here you can find out how to use UEFIPatch (part of UEFITool) to patch UEFI ...