Using System Management - Lenovo ThinkPad X280 User Manual

– UEFI/Legacy Boot Priority
Values: Legacy First, UEFI First
Description: Select the boot priority between UEFI and Legacy.
– CSM Support (for UEFI only)
Values: Yes, No
Description: Compatibility Support Module (CSM) is required for starting the legacy operating system. If
you select UEFI only, CSM Support is selectable. For Both or Legacy Only mode, CSM Support is
not selectable.
• Boot Mode
Values: Quick, Diagnostics
Descriptions: Define which screen is displayed during the POST, the logo screen or the text message
screen.
• Option Key Display
Values: Disabled, Enabled
Descriptions: If you disable this option, the "To interrupt normal startup, press Enter." message will not be
displayed during the POST.
• Boot Device List F12 Option
Values: Disabled, Enabled
Descriptions: If you enable this option, you can open the Boot Menu window by continuously pressing F12
when the computer is powered on.
• Boot Order Lock
Values: Disabled, Enabled
Descriptions: Enable this option to lock the boot device priority order.
Restart menu
Note: The BIOS menu items might change without notice. Depending on the model, the default value might
vary.
• Exit Saving Changes
Descriptions: Save the changes and restart the computer.
• Exit Discarding Changes
Descriptions: Discard the changes and restart the computer.
• Load Setup Defaults
Descriptions: Restore to the factory default settings.
Note: Enable OS Optimized Defaults to meet the Windows 10 certification requirements. When you
change this setting, some other settings are changed automatically, such as CSM Support, UEFI/Legacy
Boot, Secure Boot, and Secure RollBack Prevention.
• Discard Changes
Descriptions: Discard the changes.
• Save Changes
Descriptions: Save the changes.

Using system management

This topic is primarily intended for the network administrators.
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Chapter 6 Advanced configuration
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