Dell OptiPlex 755 - Manual (Page 13)

Boot Sequence
This feature allows you to change the boot sequence for devices.
Option Settings
l USB Device — The computer attempts to boot from the USB device. If no operating system is present, the computer generates an error message.
l Onboard or USB Floppy Drive — The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, or if no floppy disk
is in the drive, the computer generates an error message.
AC
Recovery
(Off
default)
Determines how the computer responds when AC power is re-applied after a power loss. Off commands the computer to stay off when the
power is re-applied. You must press the front-panel power button before the computer turns on. On commands the computer to turn on when
the power is re-applied. Last commands the computer to return to the last power state the computer was in just before it was turned off.
Auto Power
On
(Off
default)
Sets the computer to automatically turn on. Off disables this feature. Everyday turns the computer on every day at the time set in Auto Power
Time. Weekdays turns the computer on every day from Monday through Friday at the time set in Auto Power Time.
NOTE: This feature does not work if you turn off your computer using the switch on a power strip or surge protector.
Auto Power
Time
Sets time to automatically turn on the computer.
Time is kept in the standard 12-hour format (hours:minutes). Change the startup time by pressing the right- or left-arrow key to increase or
decrease the numbers, or type numbers in both the date and time fields.
Low Power
Mode
(Off
default)
When Low Power Mode is selected, remote wakeup events will no longer power up the computer from Hibernate or Off via the onboard
network controller.
Remote
Wake-Up
(Off
default)
This option allows the computer to power up when a network interface controller or remote wakeup-capable modem receives a wake up signal.
On is the default setting. On w/ Boot to NIC will allow the computer to attempt to boot from a network prior to using the boot sequence.
NOTE: Normally, the computer can be powered up remotely from suspend mode, hibernate mode, or when powered off. When Low Power
Mode (in the Power Management menu) is enabled, the computer can only be powered up remotely from Suspend.
Suspend
Mode
(S3
default)
Sets the computer's suspend mode. The options are S1, a suspend state in which the computer is running in a low-power mode, and S3, a
suspend state in which the power is reduced or turned off for many components, however, system memory remains active.
Maintenance
Service Tag Displays the service tag for your computer.
SERR Message
(On default)
Some graphics cards require that the SERR message be disabled.
Load
Defaults
Restores system setup options to their factory defaults.
Event Log Allows you to view the Event Log. Entries are marked R for Read and U for Unread. Mark All Entries Read puts an R to the left of all the
entries. Clear Log clears the Event Log.
POST Behavior
Fastboot
(On default)
When enabled, this feature reduces computer startup time by bypassing some compatibility steps. Off does not skip any steps
during computer startup. On starts the computer more quickly.
Numlock Key
(On default)
Determines the functionality of the numeric keys on the right side of your keyboard. Off commands the right keypad keys to function
as arrows. On commands the right keypad keys to function as numbers.
POST Hotkeys
(Setup & Boot Menu
default)
Determines whether the sign-on screen displays a message stating the keystroke sequence that is required to enter the Setup
program or the Quickboot feature. Setup & Boot Menu displays both messages
(F2=Setup and F12=Boot Menu). Setup displays the setup message only (F2=Setup). Boot Menu displays the Quickboot message
only (F12=Boot Menu). None displays no message.
MEBx Hotkey Specifies whether the sign on screen displays a message stating the keystroke sequence required to enter the MEBx setup program.
Default is on.
Keyboard Errors
(Report default)
When set to Report (enabled) and an error is detected during POST, the BIOS will display the error message and prompt you to
press <F1> to continue or press <F2> to enter system setup.
When set to Do Not Report (disabled) and an error is detected during POST, the BIOS will display the error message and continue
booting the computer.