Minisforum UM780 XTX has excellent IOMMU groups

Operating Systems & Open Source Virtualization
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I’ve just got my shiny new Minisforum UM780 XTX in the mail.
(EDIT: yes, the model from the recent video)

Its IOMMU groups are looking pretty good - all nicely separated!

Group 0 00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ea]
Group 1 00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ed]
Group 2 00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ea]
Group 3 00:02.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ee]
Group 4 00:02.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ee]
Group 5 00:02.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ee]
Group 6 00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ea]
Group 6 00:03.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 19h USB4/Thunderbolt PCIe tunnel [1022:14ef]
Group 7 00:04.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ea]
Group 7 00:04.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 19h USB4/Thunderbolt PCIe tunnel [1022:14ef]
Group 8 00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ea]
Group 9 00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14eb]
Group 10 00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14eb]
Group 11 00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14eb]
Group 12 00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
Group 12 00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
Group 13 00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f0]
Group 13 00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f1]
Group 13 00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f2]
Group 13 00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f3]
Group 13 00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f4]
Group 13 00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f5]
Group 13 00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f6]
Group 13 00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14f7]
Group 14 01:00.0 Non-Volatile memory controller [0108]: Transcend Information, Inc. Device [1d79:2267] (rev 03)
Group 15 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)
Group 16 03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)
Group 17 04:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX210/AX211/AX411 160MHz [8086:2725] (rev 1a)
Group 18 c5:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Phoenix1 [1002:15bf] (rev c2)
Group 19 c5:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller [1002:1640]
Group 20 c5:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 19h (Model 74h) CCP/PSP 3.0 Device [1022:15c7]
Group 21 c5:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15b9]
Group 22 c5:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15ba]
Group 23 c5:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor [1022:15e2] (rev 63)
Group 24 c5:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller [1022:15e3]
Group 25 c6:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ec]
Group 26 c7:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ec]
Group 27 c7:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c0]
Group 28 c7:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c1]
Group 29 c7:00.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #1 [1022:1668]
Group 30 c7:00.6 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #2 [1022:1669]
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2

I’ve generated the previous IOMMU group listing with the BIOS version 1.04.

Since 2023-12-15, there’s a new version 1.05, which fixes PCIe AER BadTLP and BadDLLP issues, a.k.a. WHEA-Logger Error 17, amongst others. It seems Minisforum implemented an additional device, see Group 26 @ C6:00.1 - a Signal processing controller - here’s a diff.

user@um780xtx ~/temp $ diff 1.04 1.05
37,41c37,42
< Group 26 c7:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ec]
< Group 27 c7:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c0]
< Group 28 c7:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c1]
< Group 29 c7:00.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #1 [1022:1668]
< Group 30 c7:00.6 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #2 [1022:1669]
---
> Group 26 c6:00.1 Signal processing controller [1180]: Advanced Micro Devices, Inc. [AMD] Device [1022:1502]
> Group 27 c7:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:14ec]
> Group 28 c7:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c0]
> Group 29 c7:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15c1]
> Group 30 c7:00.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #1 [1022:1668]
> Group 31 c7:00.6 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Pink Sardine USB4/Thunderbolt NHI controller #2 [1022:1669]

Edit: they’ve also implemented a slightly more aggressive fan curve - the little box is about -10°C “louder” now - in a 23°C ambient setting, i’m getting ~74.5°C, instead of 83°C max., in 70W performance mode, running Win10pro + Cyberpunk2077. (imho, it’s fine - not annoying, even without headphones)