|So after looking around online it looks like there are several links to this information about resetting the password with the VA setup. Not sure if it is something you have already tried, it sounds as though you have put considerable effort into it. I am only posting this as a consideration.|
Unplug the system plus peripheral devices and take the cover off.
Move the J25 jumper to Maintenance mode: IE, to the 2ND and 3rd jumper settings rather than the 1st and 2nd jumper settings. (there are 3 pins, just move it over one.)
Turn the system back on - it will automatically go into a maintenance utility where you can choose the "Clear Passwords" option.
A pop up screen will appear asking for confirmation regarding clearing the passwords. Select "Yes" and enter.
Press F10 to save the current savings and exit the menu.
Shut system down and return J25 back to the pins 1 and 2.
Close up the system and restart.