User`s manual

Troubleshooting
Smartio C168H/PCI User’s Manual 6-3
Different boards have conflicting COM numbers. Change the MOXA board’s
COM number mappings.
4. Windows NT system panic (blue screen).
One possible reason is an IRQ or I/O address conflict with other ISA Bus
adapters, such as LAN and SCSI boards, or the system BIOS. Refer to the
corresponding problem in the previous General Troubleshooting section for
solutions.
Windows 95/98
This section is specific for troubleshooting under Windows 95/98. For general
problems and solutions, see the previous section, General Troubleshooting.
1. The system cannot find the Smartio C168H/PCI board!
- The boards are not properly plugged in.
- The slot being used is defective. Try other slots until you find one that works.
- The board might be defective.
2. After the system reboots, the error message “C168H/PCI (BusNo=x, DevNo=x,
Port1=COMx) interrupt number is invalid!” appears.
This indicates that the MOXA board has been found, but the IRQ that was
assigned conflicts with another adapter. Make sure the MOXA board’s IRQ
does not conflict with another adapter’s IRQ setting. Check the PCI BIOS IRQ
settings and select an available IRQ for the MOXA board.