First post, by GoblinUpTheRoad
A while back, after playing games on my 486 off and on for several weeks, suddenly my mouse stopped working. Tried using another mouse and it too wouldn't work. Next I swapped out the I/O card with another and still the same, not working. I put the orignal I/O card back in, but this time I moved it to a new ISA slot and the mouse started working again and all was good.
Fast forward a few months and the same thing happened again. I moved the I/O card to all the different ISA slots, tried different mouses, different I/O cards but can't get the mouse to work. Tried to use COM2 port but still nothing.
Cutemouse drivers load fine but Microsoft Diagnostics says that the mouse is 'Not Detected', and IRQs and stuff looks good.. Microsoft's MOUSE.COM won't load, says no mouse found.
I've confirmed the mouses and I/O cards work fine in my other systems, so I think it has to be the motherboard. The hard drive, CD-ROM, and two floppy drives all work fine off of the same I/O card, but it seems strange that it is isolated to just the COM ports as everything else in the system is working fine.
Does anyone with a deeper knowledge of how the ISA BUS works have any guesses as to where the problem might be? Can anyone recommend some more ways to test?