by NickS » Sun Mar 09, 2003 2:16 am
Excellent pictures, but it is not a card I recognise. It is likely to be a Trident TVGA8800 based card; the square chip probably says "TVGA8800" on it if you peel the Colorimage label off. My cards have a 6-way switch pack as well as the IRQ 2/9 enable/disable jumper (posn E/D) and Mono/Color jumper. Monitor type selection is on the first 4 switches and is as follows:
All ON - VGA mode
1 OFF, others ON - EGA mode
2 OFF, others ON - CGA mode
1 & 2 OFF, 3 & 4 ON, MDA/Hercules mode
5 is fast/slow address decode, 6 is 16 bit/8 bit data path.