Reference Guide
BIOS Settings Name Description Supported 
Operating 
System(s)
• 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.
Secure Boot Mode
Configures the Secure Boot Mode.
Possible values are:
• Deployed ModeAudit Mode
• Audit Mode
Microsoft Windows, 
Linux
Secure Boot Policy
Configures the secure boot policy.
Possible values are:
• Standard — The BIOS uses the system manufacturer's keys 
and certificates to authenticate preboot images.
• Custom — The BIOS uses user-defined keys and 
certificates. Secure Boot Policy is Standard by default.
Microsoft Windows, 
Linux
Secure Guard Extensions
Configures 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 configuring the 
Software Guard Extensions (SGX) feature is from the 
BIOS setup screen.
Microsoft Windows, 
Linux
Serial Communications
Sets the Serial Communication.
Possible values are:
• Off
• On without console redirection
• On with console redirection (COM1)
• On with console redirection (COM2)
• On with console redirection
Microsoft Windows
Serial Port 1
Configures the 1st serial port of the system.
Possible values are:
• Disable — Disables the 1st serial port.
• Auto — Enables the auto-configuration of the 1st serial port.
• COM1
• COM2
• COM3
• COM4
• BMC Serial
• BMC NIC
Microsoft Windows, 
Linux
284 BIOS settings supported in Dell Command | Monitor 10.2.1










