I have an ASRock Z68 Pro3 Gen3 with the latest BIOS 2.30 available from Asrock and an Nvidia GTX 1650 Super (Release Nov19).

UBU says: BIOS release - L2.21 06/29/2012; BIOS platform - AMI Aptio 4; no EFI Drivers

Thanks to MBR2GBT my Windows 10 boots with bootmgfw.efi and winload.efi and the UEFI shows Boot Priority #1: Windows Boot Manager.

However, my attempt to change PCI ROM Priority from "Legacy ROM" to "EFI Compatible ROM" failed with the problem reported by @kevindd992002.

If I understand this correctly,
... I can deduce from the presence of the "Legacy ROM" option that my UEFI is forced to run with CSM and therefore cannot provide features like Fast Boot or Secure Boot.
... the boot process should be faster if the option would do what it should and thus use the "EFI Compatible ROM" (e.g. in case of my graphics card the GOP driver).
Correct?

Unfortunately, I have very little knowledge of BIOS, UEFI and the booting procedure in general, but I think I can figure it out with a little help.

@Krazubu , since you seem to have found a solution, I'd be happy if you could share the essence of your insight and explain in a bit more detail the steps to take.

Thanks for the effort already invested in this topic!

Zitat von Cyberia im Beitrag #167

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@Lost_N_BIOS

Sorry about not responding in the other thread, real-life intervened. I was, at the time, considering asking for an option in GOPUpd to entirely remove the GOP header. This is because my motherboard, an ASUS P8Z68 PRO/GEN3 simply won't POST with any video card which has a GOP if the EFI BOOT option is enabled. After reading dozens of posts here, I realized other people had pointed this out as the board has an early and incomplete UEFI subsystem.

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I have same problem on P8z68-v lx. Bios option "efi compatible rom" don't work.
This is probably due P67 and 68 are first with UEFI support and ASUS didn't its job properly. Even with 100% compatible UEFI hardware sometimes it works sometims not. I think the problem is that UEFI version doesn't support all graphics cards like it should.

I have the Sabertooth P67 latest bios and EFI OSes won’t boot or whatever. This sucks so much going through all of this hassle all those years and it’s about to turn to 2022.

I am giving up and going to change to Alder lake finally but my problem is while I have seen all other UEFI from other motherboards the ASUS has my most favourite one cause it’s simple and clean. And honestly I am scared if again sometime in the future there are non working stuff or whatever