There are two different pinout standards for RS-232 serial port headers in motherboards/cards (AT/EVEREX and DTK/INTEL): RS232 serial motherboard header connector pinout You can easily determine which one is supported by your card by checking whether GND connects to pin #5 or #9. Unfortunately …

I have been trying to setup a serial mouse with a Floppy/IDE controller card (Winbond W83758P/W83757F) and it took me a while to find out that the serial cable connector that came with it is the culprit. I bought mine on ebay and I thought the seller must have changed the serial cable connector with …

Have you made sure you're using the correct serial port bracket? There are 2 different pinouts. I know this is an old post but I’m having a similar issue with the same i/o controller card. Do you any any serial cable bracket that works with this type of controller card. The usual cable doesn’t seem …