ASUS Z270G + ARC750 - is not working

[yargun]

System

• Motherboard: ASUS Z270G
• BIOS Version: 1501
• RAM: 32G
• GPU: Arc 750 8GB
• CSM is turned off.
• 4G decoding is enabled.
• UEFIPatch is applied
• I have read [Common issues (and fixes)]

Description
I did everything and still cannot get it to work

1. I updated the bios according to instructions using UEFITool
2. I ran the UEFIPatch (no pad issue was found and DSDT patch not required)
3. Flashed the modified bios after extracting the body with /GAN
4. Changed mbr -> gpt , cms off, 4GB ON (Device manager shows large memory for pci bus after the change)
5. All ok to that point
6. With rebarstate set to 8, 12, 14, 32 - I get the below:
7. GPU is NOT working, only iGPU is giving display (showing error 12 - resource collision)
8. Tried to connect 2 monitors on GPU and iGPU - same behavior
9. rebarstate set to 0 - GPU is showing display again - no error 12 - no rebar
10. Any suggestions???
    -Rafi.

[xCuri0]

rebarState not working at even 8 is weird, because that is same as 256mb default.

Try re doing everything with MMTool, common issue on ASUS motherboards for stuff to break when using UEFITool/UEFIPatch. See #98 (comment) if you need help doing it

[yargun]

I saw that someone with exact same board wrote that it worked for me according to instructions, so its indeed weird
I will give it a try using the MMTool

[xCuri0]

Update ?

[takem94]

@yargun I have a very similar situation, but as exception works also values 7 and 8. For some reason it seems to me that the problem is in the GPU, I’m almost sure that it would work with another video card, have you tried it by chance?

[xCuri0]

Closing due to inactivity