Bios freezing at "Checking NVRAM"

I have a dual opteron Tyan board and it freezes when booting with a USB Device at the line "Checking NVRAM". Any clues about what might be happening. It boots fine without the FreeBSD USB. FreeBSD version is 13 and 13.1

Thanks
Ed
 
Have you fooled around with various USB modes.
EHCI, XHCI in the BIOS under USB.
I would start there.

Oh yea and if its a USB3 stick I have seen same type issues. Freeze up on USB boot.
Must use USB2 stick for older hardware. USB3 fails.
 
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