First post, by TSG
Made an account just for this because I can't actually find any help anywhere else.
I have a VT-503 Socket 7 motherboard with a Pentium MMX 200Mhz + 128MB RAM. Everything works fine except the serial connections on the board do not function at all. I tried five different sets of 9-pin ribbon cables and two mice. The board only has a 5-pin DIN keyboard connector, no PS/2.
Since the serial connections on board just absolutely refuse to work (I suspect it's a hardware problem, but I have no way to diagnose) , I got a Lava Computers Dual DB9 ISA card as a workaround. I disabled the onboard connectors in the BIOS (Award 1995 if that matters) and set the jumpers on the card to use COM1, IRQ 3 and COM2, IRQ 4 in their place.
The BIOS, Snooper, and all other programs detect the ports correctly. I plug up my mouse and run Microsoft Mouse 9.01. The mouse is detected and it lets me install drivers (MS-DOS only for now) but in the Mouse Manager settings menu, where you can test the mouse, I cannot move the cursor at all.
I tried my other mouse and also tried them both under WfW 3.11. Same result, everything detects there is a mouse connected, but I cannot move the cursor no matter what. Baud rate? Could the ISA card be bad? The motherboard itself?
Any help would be appreciated.