Proxmox 9.1 on HP T620 Thin Client - Supported?

Garet

New Member
Feb 27, 2026
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After instaling Proxmox 9.1 on HP T620 and try to start HAOS VM:

Code:
  Starting Home Assistant OS VM KVM virtualisation configured, but not available. Either disable in VM configuration or enable in BIOS.

[ERROR] in line 657: exit code 255: while executing command qm start $VMID

There Are no any Vitrualisation option in BIOS
  • Model HP T620
  • RAM: DDR3L 4GB
  • SDD M2 32GB (M.2 SATA.
  • CPU: AMD GX-415GA - 4 core 1500Mhz
  • USB 2.0 i USB 3.0
  • GPU: Radeon HD 8330E
  • network: RTL8111/8168/8411 1000Mb/s
  • BIOS Ver (L40 00.02.19 Rev.A) latest

Is T620 Supported at all?
Anyone's managed to run VMs on it?
 
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Usually if there really is no virtualization settings in BIOS (you should check again) - then either your CPU does not support it or it is left as default which is probably on (firmware dependent). Again you may have some shoddy BIOS, have you updated it?

Maybe this thread helps?
 
Thx for the answer.
I've updated BIOS to latest version. Problem remains the same.
There is no any Virtualisation switch in former nor latest BIOS update - tripple checked
Does realy AMD GX-415GA NOT support Virtualisation and so Proxmox?
Have anybody any experience with this Hardware and Proxmox?
 
Does realy AMD GX-415GA NOT support Virtualisation and so Proxmox?

You can boot your computer from some "live CD" and issue:

grep -E 'svm|vmx' /proc/cpuinfo

or for better readability:

grep --color=auto -E 'svm|vmx' /proc/cpuinfo

If the output contains svm (for AMD) or vmx (for Intel) then the CPU supports virtualization.

Source: https://docs.redhat.com/en/document...nd_tricks-verifying_virtualization_extensions

P.S. I believe the test can give false negative result if the virtualization is disabled in the BIOS, though...
 
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Thank you
grep -E 'svm|vmx' /proc/cpuinfo
finds string:
"svm_lock"
Is there any way to switch virtualisation on
since it doesnt apear in HP BIOS setup?
 
Hi,

Is there any way to switch virtualisation on
since it doesnt apear in HP BIOS setup?
If you know how to modify a BIOS, you can do it; otherwise, i don't thinks it's possible if the manufacturer has not put this option in BIOS.

Best regards,