This article will tell you how to set up the COM port 1 through BIOS.
Delete or Del to enter the BIOSAdvanced directory and select Super IO Configuration /Super%20IO%20Configuration.png)
Serial Port 1 Configuration /Serial%20Port%201%20Configuration.png)
/Transmisson%20Mode%20Select.png)
F4 to access the settings and reboot /Save%20and%20Reset.png)
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