Changing Boot Sequence For The Current Boot; Boot Sequence - Dell OptiPlex SX280 User Manual

the Power Management menu) is enabled, the system can only be powered up remotely from Suspend.
The options are S1, a suspend state where the computer is running in a low-power mode, and S3, a standby state where the power is
reduced or turned off for most components, however, system memory remains active.
Suspend Mode
Maintenance
This setting will restore the computer's factory-installed default settings.
CMOS Defaults
Displays the system event log.
Event Log
Select the location of the BIOS update file. The options are Hard Drive or Diskette.
BIOS Update
Video
This option configures the amount of memory reserved for the onboard video controller. The settings are 1MB and 8MB (default).
Video Memory
Size
POST Behavior
When set to On (default), your computer will start more quickly since it will skip certain configurations and tests.
Fastboot
This option involves the rightmost bank of keys on your keyboard. When set to On (default), this option activates the numeric and
mathematical features shown at the top of each key. When set to Off, this option activates the cursor-control functions labeled on the
bottom of each key.
Numlock Key
This setting turns the OS Install Mode either On or Off (default).
OS Install
This setting specifies whether keystroke sequences are displayed when the computer starts. The default setting is Setup & Boot Menu.
POST Hotkeys
This option disables or enables keyboard error reporting when the computer starts
Keyboard
Errors

Boot Sequence

This feature allows you to change the boot sequence for devices.
Option Settings
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
l
is in the drive, the computer generates an error message.
Onboard SATA Hard Drive — The computer attempts to boot from the primary hard drive. If no operating system is on the drive, the computer
l
generates an error message.
Onboard IDE Hard Drive — The computer attempts to boot from a hard drive installed in the module bay.
l
External Add-in Hard Disk — The computer attempts to boot from an external hard drive.
l
Onboard or USB CD-ROM Device — The computer attempts to boot from the CD/DVD drive. If no CD/DVD is installed or if the drive has no operating
l
system, the computer generates an error message.
USB Device — Insert the memory device into a USB port and restart the computer. When F12 = Boot Menu appears in the upper-right corner of the
l
screen, press <F12>. The BIOS detects the device and adds the USB flash option to the boot menu.
NOTE: To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the device documentation.

Changing Boot Sequence for the Current Boot

You can use this feature, for example, to tell the computer to boot from the CD drive so that you can run the Dell Diagnostics on the Drivers and Utilities CD, but
you want the computer to boot from the hard drive when the diagnostic tests are complete. You can also use this feature to restart your computer to a USB