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2nd GPU doesn't show up in IOMMU Groups

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Hi,

I've switched hardware from an i7-6700k to a Threadripper 2950x.

Now that I did a clean reinstall of Unraid on the new server it's not not showing both GPUs (GTX 1660 and RTX3050).

Both GPUs did work in the old system. One is used to be bound to a VM and the other one runs de-/encoding for docker.

 

Hardware:
AMD Threadripper 2950x 

96GB Ram 

RTX 3050

GTX 1660

Asus Prime x399-A

 

I also installed the Nvidia driver and both GPUs show up in the driver panel.

 

Here are my logs that I was able to grab:

Tower_SysDevs - 10.6.0.66.png

dmesg.txt dmesg_nvidia.txt lspci.txt lspci_nvidia.txt

chrome_Clck7c68bE.png

tower-diagnostics-20231112-0036.zip

Edited by MrLJ
Added information

Solved by MrLJ

  • Author
  • Solution

After talking to a bunch of friends and troubleshooting I have found the issue.
The BIOS didn't have the switch enabled to enumerate all IOMMU in IVRS.

chrome_1dUlT5sinM.png.faed20084857ab21e949bae817d73ce9.png

After setting this to enabled it now shows both GPUs in the System Devices.

chrome_5CisROCtES.thumb.png.e5aa219a0a90bb29cbc32f95a1d703ab.png

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