we aren't still sure which boards use Intel Boot Guard and which doesn't use it. But we expect most board use it,
because it's "recommended" by intel - as we dont recommend it.
Also there isn't yet a test script for Intel Boot Guard.
Can you post a link to that forum post?
I would like to look into a x240 flash image. If you have such board it would be nice
if you can send me a copy of the flash image via private mail.