Dell XPS 13 9305 Service Manual - Page 65

Boot Configuration, Expert Key Management, Integrated Devices, Date/Time

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Table 6. System setup options-Boot Configuration menu (continued) Boot Configuration Enable Secure Boot Enables or disables the computer to boot using only validated boot software. Default: OFF NOTE: For Secure Boot to be enabled, the computer needs to be in UEFI boot mode and the Enable Legacy Option ROMs option needs to be turned off. Secure Boot Mode Selects the Secure Boot operation mode. Default: Deployed Mode NOTE: Deployed Mode should be selected for normal operation of Secure Boot. Expert Key Management Enable Custom Mode Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified. Default: OFF Custom Mode Key Management Selects the custom values for expert key management. Default: PK Table 7. System setup options-Integrated Devices menu Integrated Devices Date/Time Date Sets the computer date in MM/DD/YYYY format. Changes to the date take effect immediately. Time Sets the computer time in HH/MM/SS 24-hour format. You can switch between 12-hour and 24-hour clock. Changes to the time take effect immediately. Thunderbolt Adapter Configuration Enables or disables booting from USB mass storage devices such as external hard drive, optical drive, and USB drive. By default, Enable External USB Ports is selected. By default, Enable USB Boot Support is selected. Enable Thunderbolt Boot Support Enables or disables Thunderbolt Boot Support. Default: OFF Enable Thunderbolt (and PCIe behind TBT) Enables or disables to allow or disallow PCIe devices to be connected through a pre-boot modules Thunderbolt adapter during pre-boot. Default: OFF Camera Enable Camera Enables or disables the camera. By default, Enable Camera is selected. Audio Enable Audio Enables or disables all integrated audio controller. Default: ON Enable Microphone Enables or disables microphone. By default, Enable Microphone is selected. System setup 65

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Table 6. System setup options—Boot Configuration menu (continued)
Boot Configuration
Enable Secure Boot
Enables or disables the computer to boot using only validated boot software.
Default: OFF
NOTE:
For Secure Boot to be enabled, the computer needs to be in UEFI
boot mode and the Enable Legacy Option ROMs option needs to be turned
off.
Secure Boot Mode
Selects the Secure Boot operation mode.
Default: Deployed Mode
NOTE:
Deployed Mode should be selected for normal operation of Secure
Boot.
Expert Key Management
Enable Custom Mode
Enables or disables the keys in the PK, KEK, db, and dbx security key databases
to be modified.
Default: OFF
Custom Mode Key Management
Selects the custom values for expert key management.
Default: PK
Table 7. System setup options—Integrated Devices menu
Integrated Devices
Date/Time
Date
Sets the computer date in MM/DD/YYYY format. Changes to the date take
effect immediately.
Time
Sets the computer time in HH/MM/SS 24-hour format. You can switch between
12-hour and 24-hour clock. Changes to the time take effect immediately.
Thunderbolt Adapter Configuration
Enables or disables booting from USB mass storage devices such as external hard
drive, optical drive, and USB drive.
By default, Enable External USB Ports is selected.
By default, Enable USB Boot Support is selected.
Enable Thunderbolt Boot Support
Enables or disables Thunderbolt Boot Support.
Default: OFF
Enable Thunderbolt (and PCIe behind TBT)
pre-boot modules
Enables or disables to allow or disallow PCIe devices to be connected through a
Thunderbolt adapter during pre-boot.
Default: OFF
Camera
Enable Camera
Enables or disables the camera.
By default, Enable Camera is selected.
Audio
Enable Audio
Enables or disables all integrated audio controller.
Default: ON
Enable Microphone
Enables or disables microphone.
By default, Enable Microphone is selected.
System setup
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