I bought a PC used and fear the COM1 serial port (only one on back of machine) doesn't work. How can I verify whether or not it works?
I borrowed a MS serial port mouse and connected it, and in NT4 selected MS serial port mouse in mouse control panel, but after rebooting the mouse didn't work.
Is there a DOS diagnostic utility or something that can tell me? The motherboard is an FIC, model PA-2005. The BIOS doesn't seem to have diagnostic tests available, though I just upgraded it (Award).