MAG X870E TOMAHAWK WIFI - USB Ports offline during install proxmox ve 9/ 91

[alexg2026]

Hello and good evening i am attempting to install Proxmox VE on a new gen motherboard MAG X870E TOMAHAWK WIFI. I know that the drivers may not be currently be considered as hardware platform, that being i am hoping to either find some assistance to get proxmox ve installed. I am happy to help if i can on getting this system as a proxmox hardware platform. I believe that the main issue is the usb hub driver failing to load. I state this due to the install attempts with many bios / uefi settings changes the issue is tue sane all usb devices go off line. Usb drive with proxmox installer iso images, keyboard and mouse loose power. Usb 2.0, 3.0 and usb-c, 5G AND 10G.​

 

[drgtwilliams]

Hello all.I am having the same issue with the MSI MAG X870E Tomahawk WIFI motherboard.I tried several BIOS changes, including updating to latest BOIS, but nothing I tried seems to work.

 

[alexg2026]

Hello drgwilliams, I was able to resolve the issue. The motherboard is supported, so that wasn’t the problem. The real issue turned out to be Ventoy—using it to create the installer caused the boot failures. I recreated the USB using Rufus and wrote the Proxmox VE ISO directly, and that fixed the installation problem.

I also discovered that my GPU was causing conflicts during the install. Removing the GPU allowed the installation to complete normally, and I reinstalled it afterward without any issues.

If you’re still running into problems, I recommend reviewing your UEFI settings. Some default options can interfere with USB booting and OS installation, so double‑checking those can save a lot of time.

Hope this helps!

TOMAHAWK WIFI (General Best Practices)​

These settings commonly affect Proxmox and other Linux installers:

Enable / Verify​

• UEFI Boot Mode (disable CSM/Legacy Boot)
• Secure Boot → Disabled
• SVM / AMD‑V (virtualization support)
• IOMMU (for PCIe passthrough or GPU isolation)
• Above 4G Decoding (important for modern GPUs)
• Resizable BAR (optional; disable if GPU causes issues)

Disable (During Install)​

• Fast Boot
• Any GPU‑related override if the installer hangs
• Unnecessary onboard devices if troubleshooting USB boot issues

USB Boot Tips​

• Use a freshly written ISO (Rufus → DD mode or ISO mode depending on Proxmox guidance)
• Plug the USB into a USB 2.0 port if the installer behaves inconsistently
• Avoid multi‑boot tools like Ventoy for Proxmox VE

 

[alexg2026]

Your issue might be different and i believe that this information might be helpful, my GPU is a gen5 device.

Hardware Types Most Commonly Affected​

1. Gen5 NVMe SSDs (Most Common Problem)​

Known issues:

• Drives disappearing under load
• Installer freezing or kernel panics
• Overheating causing link drops
• Needing to be forced to Gen4 for stability

Brands frequently reported:

• Crucial T700
• Corsair MP700 / MP700 Pro
• Gigabyte Aorus Gen5 SSDs
• Inland Gen5 NVMe

2. GPUs in Gen5 Slots​

Not the GPU itself—it's the Gen5 slot training that causes:

• Black screen during install
• Boot hangs
• Passthrough instability
• Reset issues in VMs

NVIDIA cards are more sensitive than AMD.

3. PCIe Gen5 Add‑In Cards​

This includes:

• RAID/HBA cards
• Capture cards
• High‑speed NICs (100GbE+)
• PCIe bifurcation risers

Common symptoms:

• Device not detected
• Random resets
• IOMMU group instability

4. Motherboard Chipset + BIOS Maturity​

New boards (like MSI MAG X870E TOMAHAWK WIFI) often need:

• multiple BIOS updates
• PCIe slot forced to Gen4
• ASPM disabled

Symptoms:

• USB boot issues
• NVMe not showing up
• GPU initialization failures