MSI MS-98H3 Manual page 46

BIOS Setup
▶ Serial Port Console Redirection
▶ Console Redirection
Console Redirection operates in host systems that do not have a monitor
and keyboard attached. This setting enables/disables the operation of console
redirection. When set to [Enabled], BIOS redirects and sends all contents that
should be displayed on the screen to the serial COM port for display on the
terminal screen. Besides, all data received from the serial port is interpreted
as keystrokes from a local keyboard.
▶ Console Redirection Settings
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