How do I enable the resize bar?

[한국인]

I am using Asrock B450M HDV R4.0. I enabled ResizeBar in BIOS settings, but my graphics software still says ResizeBar is not enabled. How do I enable ResizeBar?

I'm Korean and I'm not good at English. Sorry if my grammar is awkward.

[AlHill]

Here are the ARC requirements:

https://www.intel.com/content/www/us/en/support/articles/000091128/graphics/intel-arc-dedicated-graphics-family.html

Even thoiugh you have enabled resizebar in the bios, I would make sure the bios is updated to the latest revision.

Also, here is a link to the latest driver for arc:

https://www.intel.com/content/www/us/en/download/785597/intel-arc-iris-xe-graphics-windows.html

Doc (not an Intel employee or contractor)
[W10 is this generation's XP]

[Mynameforum]

Im literally has same motherboard with second gen pinnacle ridge ryzen and bios P10.10.
GPU Arc A380 rebars works i tested it on/off. There is a chande in perfomance.
To enable rebar you need:
1. Install Windows on GPT drive.
2. Disable CSM compatibility in the BIOS.
3. Enable Above 4g Decoding.
4. Enable Rebar.