ASRock Forums : Fatal1ty X399 IOMMU groups https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 07 May 2026 18:10:14 +0000 Mon, 19 Feb 2018 00:18:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=7723 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Fatal1ty X399 IOMMU groups : Friis, I know almost nothing about...]]> https://forum.asrock.com/forum_posts.asp?TID=7723&PID=45380&title=fatal1ty-x399-iommu-groups#45380 Author: MisterJ
Subject: 7723
Posted: 19 Feb 2018 at 12:18am

Friis, I know almost nothing about IOMMU and am aware of no one here who is really knowledgeable.  I recommend you open an AMD support ticket and ask them.  Good luck and enjoy, John.

EDIT: Google gets lots of hits on searching 
iommu groups in AMD Ryzen



Edited by MisterJ - 19 Feb 2018 at 12:22am]]> Mon, 19 Feb 2018 00:18:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=7723&PID=45380&title=fatal1ty-x399-iommu-groups#45380 <![CDATA[Fatal1ty X399 IOMMU groups : HiI noticed this very bad IOMMU...]]> https://forum.asrock.com/forum_posts.asp?TID=7723&PID=45376&title=fatal1ty-x399-iommu-groups#45376 Author: Friis
Subject: 7723
Posted: 18 Feb 2018 at 10:19pm

Hi

I noticed this very bad IOMMU group:
IOMMU Group 11 01:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:43ba] (rev 02)IOMMU Group 11 01:00.1 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] Device [1022:43b6] (rev 02)IOMMU Group 11 01:00.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43b1] (rev 02)IOMMU Group 11 02:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02)IOMMU Group 11 02:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02)IOMMU Group 11 02:05.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02)IOMMU Group 11 02:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02)IOMMU Group 11 02:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02)IOMMU Group 11 03:00.0 Ethernet controller [0200]: Aquantia Corp. AQC107 NBase-T/IEEE 802.3bz Ethernet Controller [AQtion] [1d6a:d107] (rev 02)IOMMU Group 11 04:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)IOMMU Group 11 05:00.0 Network controller [0280]: Intel Corporation Device [8086:24fb] (rev 10)IOMMU Group 11 06:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)

Anyway to fix? split them up with a UEFI update?
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