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What addresses are in use on my NT machine?

Problem: "I am setting up the AT card on my NT computer and the address that I selected with the DIP switches is not working. How do I know what addresses are already in use by other hardware on my computer?"

On your Start menu go to the following location:

Administrative Tools
WinNT Diagnostics
I/O port

Here you can see all the devices that are using the bus and the address they occupy.