TMS340x0 chips aren't VGA compatible.
And I can't see any VGA chipset on that board, obviously VGA compatiblity is provided via optional daughterboard.
So, as already stated - install that #9 card along with some VGA, connect two monitors, install #9 software/drivers, and enjoy TIGADEMO, Windows 3.1, Autocad, and so on...
Also, http://www.geekdot.com/hardware/miscellaneous/tiga/
In 2003, I voted in favour of joining the European Union. However, due to recent developments - especially the restrictions on cash usage - I'm hereby withdrawing my support. DOWN WITH THE EU!