Hi all, I just posted a driver that enables the high speed serial port modes for the w83627 chip used on many motherboards, such as Tyan S2460. To use the driver, you also need to use setserial after loading the driver to enable the high speed mode. Hopefully somebody someday will combine all the high speed serial port drivers into some generic high speed serial port driver... You can also download the driver from: https://www.muru.com/linux/w83627hf/ Tony