Hardware recommendation - Mainboard (since I'm hardware limited with VM stuff)

Hello everyone!
Since I had to discover that I’m hardware limited in a recent issue post by a missing VM feature that my Mainboard doesn’t have.
I would like to know if someone might recommend a good Mainboard that may have more VM features like especially IOMMU or passing trough PCIE devices to a VM like a GPU.
In the best case still the same socket for the CPU to fit (AM3+)

Why do I even need the feature?:

I still want to use TrueNAS (SCALE) as the main OS on this Machine since the main purpose is to record security camera footage to the drives and i really like the easy access localy via SMB but I want to install a NVR software (Frigate or Shinobi) for better object detection and phone notifications with a small preview. But some of these detectors need a GPU in order to work and this is where the journey ends so far because the Mainboard can not passtrough the GPU to the VM running that software…

Why don’t u install normal Ubuntu server as the main OS?
TrueNAS is still way to nice to manage all the Disks and have the SMB features…

Here the Post if you want to know it even more in detail why:

and here is my hardware that I have right now:

CPU: AMD Phenom™ II X4 965 Processor
Mainboard: Asus M5A78L-M/USB3
RAM: 24GB DDR3
GPU: GTX 1050 Ti
Boot drive: PNY SSD

According to reddit:

ASUS M5A99FX PRO R2.0 motherboard when using the 2501 BIOS
or
GA-990FXA-UD3 ver. 3.0 BIOS-FB

Links to reddit:
https://www.reddit.com/r/virtualization/comments/4jb5ag/how_did_you_get_your_asus_m5a99fx_pro_r20_with/
https://www.reddit.com/r/virtualization/comments/4jb5ag/how_did_you_get_your_asus_m5a99fx_pro_r20_with/

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This could be the issue. Suitable IOMMU grouping is more likely to be found in server motherboards, and server Ryzen is a work in progress; condition is rather good now, but with AM4/AM5 boards.

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