andyh@chaos.cs.brandeis.edu (Andrew J. Huang) (05/02/91)
I need some help with a Logitech mouse on a Western Digital 286 motherboard. I just bought a PS/2 Mouseman to plug into the PS/2 mouseport on the motherboard. It doesn't work, but the mouse is fine on other machines. Symptoms: If I plug the mouse in before powering up, the bootup acts "funny" and the keyboard is totally inoperative. Microsoft's extended memory manager is also unable to load ("can't load A20 handler"). If I plug the mouse in after powering up, the keyboard is still ok, but there's no sign of the mouse (from the mouse installation program's view). System: WD286-WM2 motherboard, 12mhz, 0 wait. Uses 8742 keyboard/mouse controller. Cable continuity checked. Questions: Does anybody have experience with this motherboard and its mouse port? Beyond connectors, is a PS/2 mouse any different from a serial mouse? (i.e. Could I adapt the connector to my serial port?) Thanks, Andy Huang