ATX-6991 User's Manual37S3 Video RepostS3 sleep mode3.2.4 F81866 Supper IO ConfigurationSerial Port 1/2/3/4/5/6 Configuration1)Serial PortSet value: [Enabled] [Disabled].2)Device Setting(read-only)Display interrupt and address of serial port3)Change SettingTo change serial port settings, it is recommended to select Auto by default.Below Serial Port 1-6 Configuration is as above.