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Appendix D Troubleshooting and Common Questions
Serial Hardware and Software for Windows D-4 ni.com
Resolving Resource Conflicts with Legacy Boards
Resource conflicts typically occur if your system contains legacy boards
that use resources that are not reserved properly. If a resource conflict
exists, write down the resource that caused the conflict and refer to the
Microsoft Windows 2000 user’s guide for instructions on how to use the
Device Manager to reserve I/O and IRQ resources for legacy boards.
Common Questions
How can I determine which type of serial hardware I have installed?
1. Select Start»Settings»Control Panel and double-click on the
System icon.
2. Click on the Hardware tabandclickontheDevice Manager button.
3. Double-click on the Ports (COM & LPT) icon to display a list of
installed ports.
How can I determine which version of the NI-Serial software I have
installed?
The Read Me file gives the version of the software. To open the file, select
Start»Programs»National Instruments»NI-Serial»Read Me.
What do I do if the diagnostic test fails with an error?
Refer to the Troubleshooting Diagnostic Messages section earlier in this
appendix.
How can I determine which port is associated with COMx?
To determine which physical port is associated with COMx, complete the
following steps:
1. In the Device Manager, under Ports (COM & LPT), double-click on
a serial port.
2. Note the Port 1, Port 2, etc. entries next to the COM numbers. For all
serial hardware, PORT1 refers to the top port, PORT2 refers to the next
port down, and so on.
How can I change the COM numbers of my National Instruments
serial ports?
1. Select Start»Settings»Control Panel and double-click on the
System icon.
2. Click on the Hardware tabandclickontheDevice Manager button.