Dell Latitude 7390 Owner's Manual

POST Behavior

Option: Description
Adapter Warnings: Allows you to enable or disable the system setup (BIOS) warning messages when you use certain power adapters.
Enable Adapter Warnings This option is selected by default.
Numlock Enable: Allows you to enable the Numlock option when the computer boots.

Enable Network This option is enabled by default.
Fn Lock Options: Allows you to let hot key combinations Fn + Esc toggle the primary behavior of F1 – F12, between their standard and secondary functions. If you disable this option, you cannot toggle dynamically the primary behavior of these keys. The available options are:

Lock Mode Disable/Standard This option is selected by default.

Lock Mode Enable/Secondary
Fastboot: Allows you to speed up the boot process by bypassing some of the compatibility steps. The options are:

Minimal This option is selected by default.

Thorough

Auto
Extended BIOS POST Time: Allows you to create an additional pre-boot delay. The options are:

0 seconds This option is enabled by default.

5 seconds

10 seconds
Warnings and Errors: Allows you to select in the BIOS setup options that cause the boot process to pause only, when warnings or errors are detected rather than stop, prompt and wait for user input. The options are:
Prompt on Warnings and Errors. This option is enabled by default.

Continue on Warnings

Sign of Life Indication