It's been a long time since I've encountered this kind of obtuseness. This
is not new, but I thought that this kind of blindness was in the rear-view
mirror. I guess not.
One of their motherboards keeps locking up on me. After some back and forth
their last reply ended the discussion thread with a:
# Since we do not fully support and validate Linux, we cannot offer full
# support on Linux. Please try a Windows base OS to check if you are still
# experiencing the same instability issue.
Just thought I'd mention it here, so that other DIYers might take this into
consideration. Looking at their support page, it's listing new BIOS updates
every month.