Please edit C:\Program Files\SUPERMICRO\SDIII\xitami\defaults.cfg directly. User can change “Portbase” to any valid TCP port. Note “Portbase=0” means port 80. And reboot the system or restart “Xitami Web Server” service".
There is another way to change the TCP port in Xitami admin web page. Please refer to “Question: How can I change the IP port number for Supero Doctor III?” in SD3 user guide.