Omega OMG-COMM8-PCI - Manual (Page 13)

Appendix A - Troubleshooting
OMG-COMM8-PCI Page 9
PCI COM NUMBER SELECTION IN WINDOWS 95
When installing a multi-port PCI card in Windows 95 the default starting COM:
number assigned to the first port will be COM:5 if no COM:5 exists. If there is a
COM: 5, 6, etc., the next available COM: number will be assigned to the first port
with all additional ports following in ascending order.
To change the first two ports so that Windows assigns them COM: 3 and COM:
4 port enumeration double click the Systems icon in control panel or right click
on My Computer and choose properties which will bring you to System
Properties. Choose the Device Manager tab and double click on the Multi-
Function Adapter heading. This will show all the information concerning the
adapter. Choose the Resources tab, which will show all resources assigned to the
multi-function adapter. Uncheck the Use Automatic Settings box. Notice that
with a two port card there will be three input/output, (I/O), ranges listed. With a
four port card there will be five input/output, (I/O), ranges listed. The first I/O
range is for the PCI bus and should not be changed. The second and third I/O
ranges are the ones that need to be changed in order to have those ports
enumerated as COM: 3 and COM: 4. Double click on the second I/O range which
will allow you to change the address. Highlight the entire I/O range and type:
03e8–03ef for COM: 3. Click OK. Windows will inform you that you have made
modifications that may affect other devices. Click OK. Next double click on the
third I/O range. Highlight the entire I/O range and type: 02e8–02ef for COM: 4.
Again Windows will inform you that you have made modifications that may
affect other devices. Click OK.
Following these steps will change the COM: number assignments on the first two
ports to
COM: 3 and 4.