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5.1 Troubleshooting
1. System fails to find the PCI Express
serial board or COM port.
A:
It may cause by following issue:
a. The board is not properly plugged into the PCI Express slot.
b. Please clean the golden finger.
c. The PCI Express slot is defective. Please try other slots until you find one
that works.
d. The mainboard does not have an available IRQ for the PCI Express
serial board. Enter the PC.s BIOS and make sure an IRQ setting is
available in the PCI/PnP settings.
e. The board itself might be defective. You can try another mainboard
testing this board working or not.
2. There is a blue screen when I entry operation system.
A:
The possible reason is an IRQ or I/O address conflict with other PCI
Express or PCI bus adapters, such as LAN or serial boards, or with the
system BIOS. Refer to the corresponding problem in the previous FAQ for
solutions.
3. There are some exclamation marks in device manager and serial ports
can not work properly.
A:
It caused by the wrong driver installing or hardware settings. Please turn off
your computer completely and re-install hardware and software, especially
re-install the correct driver.
4. Should I enable auto flow control features?
A:
Enable Auto CTS/RTS Flow Control means the CTS/RTS flow control is
controlled by hardware automatically. System will be more stable if the
function is enabled. Please make sure your serial device and cable wiring
