I did see something called Intel AMT, part of Intel vPro. https://www.howtogeek.com/56538/how-to-remotely-control-your... Does anyone have experience with this? (I have AMD box so doesn't help me) - actually looks like AMD has similar https://developer.amd.com/tools-for-dmtf-dash/
It is possible but extremely tricky to set up AMT headless on a self built Intel. You basically need to press keyboard keys at the right time. Too challenging without a display.
Devices don’t load AMT configuration from USB by default unless a vendor configured them to. In which case the vendor just ships you AMT enabled in the first place.
Better to just image the disk on a different computer.