One Time Boot Menu; Bios Setup; Overview - Dell P139G Service Manual

Table 2. Navigation keys
Keys
Up arrow
Down arrow
Enter
Spacebar
Tab
Esc

One time boot menu

To enter one time boot menu, turn on your computer, and then press F12 immediately.
NOTE: It is recommended to shutdown the computer if it is on.
The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:
● Removable Drive (if available)
● STXXXX Drive (if available)
NOTE: XXX denotes the SATA drive number.
● Optical Drive (if available)
● SATA Hard Drive (if available)
● Diagnostics
The boot sequence screen also displays the option to access the System Setup screen.

BIOS setup

NOTE: Depending on the laptop and its installed devices, the items listed in this section may or may not appear.

Overview

Table 3. Overview
Option
System Information
Navigation
Moves to the previous field.
Moves to the next field.
Selects a value in the selected field (if applicable) or follow
the link in the field.
Expands or collapses a drop-down list, if applicable.
Moves to the next focus area.
NOTE: For the standard graphics browser only.
Moves to the previous page until you view the main screen.
Pressing Esc in the main screen displays a message that
prompts you to save any unsaved changes and restarts the
system.
Description
This section lists the primary hardware features on your
system.
The options are:
● System Information
○ BIOS version
○ Service Tag
○ Asset Tag
○ Manufacture Date
○ Ownership Date
○ Express Service Code
BIOS setup 95