ASRock Forums : x470 K4 gaming bios update break virtualization https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 14 Jun 2026 01:26:46 +0000 Wed, 24 Jul 2019 20:10:09 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=11993 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[x470 K4 gaming bios update break virtualization : Hi,Is there anyway to downgrade...]]> https://forum.asrock.com/forum_posts.asp?TID=11993&PID=65457&title=x470-k4-gaming-bios-update-break-virtualization#65457 Author: jmandawg
Subject: 11993
Posted: 24 Jul 2019 at 8:10pm

Hi,

Is there anyway to downgrade bios. Specifically latest Agesa breaks IOMMU GPU passthrough for virtualization. Or any word on a fix for this?

For reference:

https://www.reddit.com/r/Amd/comments/bh3qqz/agesa_0072_pci_quirk/

https://www.reddit.com/r/VFIO/comments/c0hnmf/vfio_agesa_0072_survivor_wants_to_foolishly/

Thanks.
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