Issues disabling CSM

[TheTubbyWhale]

I recently decided to try and use SAM (Smart access memory). To do this, one of the options I need to enable is 'Resize bar'. However, to do this, I need to disable CSM. When I do this, I am told 'VGA card not supported by UEFI driver' and that CSM settings were changed for better compatibility. My main drive with windows installed is GPT. 

 

Specs:

 

Asus prime a320m-k

Rx 580 8gb Sapphire Nitro edition

r5 3600

16GB 2666HZ RAM (some corsair vengeance or something)

 

 

[RONOTHAN##]

8 minutes ago, TheTubbyWhale said:

Rx 580 8gb Sapphire Nitro edition

Pretty sure this card doesn't support Resizable BAR/SAM anyway, so this likely is a fruitless endeavor anyway. 

 

Still, that card is new enough that it should support UEFI natively. Given it's an RX 580 8G, this makes me think it might be an ex-mining card and might have a mining vBIOS present on it. If you bought this card brand new and haven't done any fancy BIOS flashing, I don't really know what this could be, but if it's a used card I would download the proper vBIOS from TechPowerUp and reflash the card to the proper vBIOS. 

[TheTubbyWhale]

I see. Thanks. I planned on upgrading soon anyways and also, the card is/was brand new when purchased.

[IkeaGnome]

34 minutes ago, RONOTHAN## said:

Pretty sure this card doesn't support Resizable BAR/SAM anyway, so this likely is a fruitless endeavor anyway. 

It seems to be the motherboard holding this back. They added 3xxx series CPUs and 5xxx GPUs a while ago to support SAM, but it requires a 500 series chipset.

https://www.pcworld.com/article/394980/how-to-turn-on-amds-smart-access-memory-for-faster-gaming-performance.html