Lenovo ThinkPad X380 Yoga User Manual page 80

Description: Enable or disable the power-saving feature that stops the microprocessor clock automatically
when there are no system activities. Normally, it is not necessary to change the setting.
• Power On with AC Attach
Values: Disabled, Enabled
Description: Enable or disable a feature that turns on the computer when the ac power adapter is
attached.
• Disable Built-in Battery
Values: Yes, No
Description: Temporary disable battery for servicing the system. After selecting this item, the system will
be automatically powered off, then ready to be serviced.
Note: The battery will be automatically enabled when the ac power adapter is reconnected.
Beep and Alarm
• Password Beep
Values: Disabled, Enabled
Description: Enable or disable a beep when the computer is waiting for a power-on, hard disk, or
supervisor password. Different beeps remind you that the password you entered is right or wrong.
• Keyboard Beep
Values: Enabled, Disabled
Description: Enable or disable a beep when unmanageable key combinations are pressed.
Thunderbolt(TM) 3
• Wake by Thunderbolt(TM) 3
Values: Disabled, Enabled
Descriptions: Enable or disable Wake Feature with Thunderbolt(TM) 3 Port. If you select Enabled, the
battery life during the low power state might become shorter.
• Security level
Values: No Security, User Authorization, Secure Connect, Display Port and USB
Descriptions: Select the security level.
• Thunderbolt(TM) device
Values: Disabled, Enabled
Descriptions: Enable or disable pre-OS support for Thunderbolt(TM) devices attached to the Thunderbolt
(TM) 3 port. To use a device in the pre-boot environment, authorize it in the operating system or set the
Security level to No Security. To boot from a Thunderbolt 3 device, change the device boot priority order
by selecting Startup ➙ Boot.
• USB device
Values: Disabled, Enabled
Descriptions: Enable or disable pre-OS support for USB devices attached to the Thunderbolt (TM) 3
connector. To use a device in the pre-boot environment, authorize it in the operating system or set the
Security level to No Security. To boot from an USB device connected through the Thunderbolt 3
connector, change the device boot priority order by selecting Startup ➙ Boot.
Intel AMT
• Intel (R) AMT Control
Values: Disabled, Enabled, Permanently Disabled
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X380 Yoga User Guide