Reference Guide

BIOS Settings Name Description Supported Operating
System(s)
Secure Boot
The BIOS performs a Secure Boot authentication while attempting to boot from a
UEFI partition. It refers to this setting to decide on the POST behavior.
Possible values are:
• Enable — When enabled, BIOS only performs Secure Boot and boot in UEFI
mode without loading the Compatibility Support Model (CSM).
NOTE: You can disable secure boot only from the BIOS setup screen.
Microsoft Windows,
Linux
Secure Boot Mode
Congures the Secure Boot Mode.
Possible values are:
• Deployed ModeAudit Mode
• Audit Mode
Microsoft Windows,
Linux
Secure Boot Policy
Congures the secure boot policy.
Possible values are:
• Standard — The BIOS uses the system manufacturer's keys and certicates
to authenticate preboot images.
• Custom — The BIOS uses user-dened keys and certicates. Secure Boot
Policy is Standard by default.
Microsoft Windows,
Linux
Secure Guard Extensions
Congures the Software Guard Extensions (SGX) feature. You can select Enabled
or Software Controlled if this option is Disabled.
NOTE: Using Dell Command | Monitor, you cannot do the following:
• Disable this feature if the current state is Enabled or Software Controlled
• Enable this feature if the current state is Software Controlled
• Change this feature to Software Controlled if the current state is Enabled
NOTE: One of the methods of conguring the Software Guard
Extensions (SGX) feature is from the BIOS setup screen.
Microsoft Windows,
Linux
Serial Communications
Sets the Serial Communication.
Possible values are:
• O
• On without console redirection
• On with console redirection (COM1)
• On with console redirection (COM2)
• On with console redirection
Microsoft Windows
Serial Port 1
Congures the 1st serial port of the system.
Possible values are:
• Disable — Disables the 1st serial port.
• Auto — Enables the auto-conguration of the 1st serial port.
• COM1
• COM2
• COM3
• COM4
• BMC Serial
• BMC NIC
Microsoft Windows,
Linux
BIOS settings supported in Dell Command | Monitor10.1.0 291