https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 25 Apr 2026 07:43:41 +0000 Sat, 13 Jun 2020 16:01:29 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=14679 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=14679&PID=76401&title=cannot-find-iommu-setting-on-3-70#76401 Author: AOV
Subject: 14679
Posted: 13 Jun 2020 at 4:01pm

Hi

I have Fatal1ty B450 Gaming-ITX/ac with ryzen 2700. After updating bios to version 3.70 I cannot find the IOMMU -setting. I have combed through all the menus and seems like the setting simply is not there. I cannot downgrade bios because the earlier versions have other stuff broken.

Should the iommu setting be there at all? Do I have to flip some other settings before it appears? Do I have to upgrade my cpu to 3-series to make it work?
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