actually, you can set the comport on any vacant or not in used port...right.?. now base on what you've ask RPCoyle it's Commport 1..whenever i open the arduino then go to tools/serial port it's comport 1..then when i open the serial monitor it's still com1... but i can change this if ever i want by just right clicking the computer/properties/device manager/port(COM & LPT)/port settings/advance/comport number..