on your MS is not installed the PCIexpress VGA card and also you have the mainboard without the PCIexpress slot.
PCIexpress VGA is available only from my company, because have embedded the LVDS interface board for the 8.4" display.

Note also that OS 4.1 is working now with the new Jack MP ( multi processor DSP) and NOT work with a single core CPU, min need a dual core.
So..IF you decide to upgrade to OS 4.1 you need:
Mainboard K10N78
PCI Express VGA
CPU AM3 dualcore
thats all.