Reference Guide

BIOS Settings Name Description Supported
Operating
System(s)
Signed Firmware Update
Enforces the verification of digital signatures in the BIOS update
payload before updating the BIOS. Once Enabled, the system
BIOS cannot be updated to any revision that does not contain a
valid digital signature.
Possible values are:
• Disabled
• Enabled
Windows, Linux
SmartCard Reader
Enables or Disables the Smart Card Reader.
Possible values are:
• Off
• Enabled
Windows
Slice Battery Custom Charge Limit
Customs the charging limit.
Possible values are: 50, 100, 5
• Allow Start Charging Limit
• Allow Stop Charging Limit
• Allow Stop Granularity
Windows
SMART Errors
Enables or Disables SMART Errors.
Possible values are:
• Disabled
• Enabled
Windows, Linux
SMM Security Mitigation
Enables or Disables SMM Security Mitigation.
Possible values are:
• Enabled
• Disabled
Windows, Linux
Sound Device
Status of the system's built-in sound device.
Possible values are:
• Disabled
• Enabled
Windows, Linux
Speaker
The volume of the speaker.
Possible values are:
• Disabled
• Enabled
• Low
• Medium
• High
Windows, Linux
SpeedStep
Sets SpeedStep to Automatic, Disabled, Max Performance, or
Max Battery.
Possible values are:
• Disabled
• Maximum performance
• Maximum battery life
• Auto
Windows, Linux
Splash Screen
Enabled/Disabled the Splash Screen.
Windows
BIOS settings supported in Dell Command | Monitor 10.3 291