"I've already tried using secure boot"
have you disabled it?
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"I've already tried using secure boot"
have you disabled it?
Actually I got some of these (exact same model) for cheap from a business that went down 2 months ago.
I didn‘t have the time to properly test them out, but I threw plain debian on one of them. But I had to fiddle around with several settings in the bios/uefi first before getting it running.
As proxmox is based on debian, so I don‘t see a reason for it not to work.
I try to provide more information tomorrow - it‘s quite late in UTC+1.
Proxmox userland is debian, kernel however is not.
I'd imagine that VT-d and VT-x have no impact on host kernel boot-up.
However any additional info is relevant, as there might be platform specific quirks.