AsRock IMB-180 Above 4G Decoding

[Karalux]

Hello, i want to enable ReBar support for my GPU on AsRock IMB-180 motherboard that does not have Above 4g Decoding properly implemented in its bios. I contacted AsRock support asking to add Above 4g Decoding and all i got was a modded bios with unsuccessful try to do it, it still doesnt work propely. Is there anyone who could add fully working Above 4g Decoding to this bios? https://download.asrock.com/BIOS/IPC/IMB-180(1.70)ROM.zip

 

[JLK03F150]

I was going to reply that it can't be done on a motherboard of that age, but it seems it is possible to do it. You might want to research these apps and see what you need to get it going.

GitHub - xCuri0/ReBarUEFI: Resizable BAR for (almost) any UEFI system

Resizable BAR for (almost) any UEFI system. Contribute to xCuri0/ReBarUEFI development by creating an account on GitHub.

github.com

Let us know if you are successful! I might try to enable reBar on my Haswell system.

 

[Karalux]

Thats the mod i want to use, but in order for it to work i need working above 4G decoding first which is usually not a big problem for Haswell systems (even if its hidden or broken it can be fixed by multiple ways that are explained in ReBarUEFI Github). As far as i know usually z87 motherboards have more problems with this and in my case IMB-180 being an industrial board with a mobile chipset and not having a proper bios code is even more complicated.

 

[JLK03F150]

Ouch, so it sounds like we will both have a hard time implementing reBar support.