To further assist you, we need the correct Exxact SN# so we may have visibility to your system's initial hardware configuration.
It may be in a file as a copy of our QA log. You can try searching for this by running this command:
sudo ls /root/SN*
Example Exxact Serial Number sticker:
System examples, of where the sticker is located (in the back of the system)
Back of system:
Front pull-out tab: