Dell Alienware X51 R2 Owners Manual

System Setup  |  11
System Setup Options 
 NOTE: Depending on your computer and installed devices, the items listed in this 
section may or may not appear exactly as listed. Setup Item — This field appears on the 
left side of the system setup window. 
The field is a scrollable list containing 
features that define the configuration of 
your computer, including installed 
hardware, power conservation, and 
security features.
Scroll up and down the list using the 
mouse or with the up- and down-arrow...

12  |  System Setup ME Information
ME Firmware 
VersionDisplays the version of the Management Engine (ME) 
Firmware.
Memory 
Information
Total MemoryDisplays the total computer memory.
Memory AvailableDisplays the amount of memory available on the computer.
Memory TechnologyDisplays the type of memory technology used.
Memory SpeedDisplays the memory speed.
CPU Information
Processor IDDisplays the processor identification code.
CPU Speed Displays the processor speed.
Cache L2Displays the processor L2...

System Setup  |  13
Advanced — Integrated Devices
USB ControllerAllows you to enable or disable the integrated USB 
controller.
HD AudioAllows you to enable or disable the integrated audio 
controller.
Onboard LAN 
ControllerAllows you to enable or disable the onboard LAN controller.
Primary DisplayAllows you to select which of the Integrated/Discrete 
graphics device should be the Primary Display.
PXE Option
UEFI PXE DriverAllows you to enable to disable boot option for UEFI (Unified 
Extensible...

14  |  System Setup Set Boot Priority
Boot ModeAllows you to select Legacy or UEFI boot mode.
NOTE: Legacy boot mode if selected, enables booting to 
devices that support Legacy BIOS. UEFI boot mode if 
selected, enables UEFI drivers.
CAUTION: Changing boot modes require that 
your boot storage device be partitioned to 
match the boot mode compatibility. Changing 
boot modes could result in an incompatible boot 
storage device, which may prevent the original 
OS boot. Restoring the boot mode may resolve...

System Setup  |  15
Boot Sequence
This feature allows you to change the boot sequence for devices.
Boot Options
•Floppy — The computer attempts to boot from the floppy disk drive. If no operating 
system is on the drive, the computer generates an error message.
•Hard Drive — The computer attempts to boot from the primary hard drive. If no 
operating system is on the drive, the computer generates an error message.
•CD/DVD/CD-RW Drive — The computer attempts to boot from the optical drive. If 
no disc is...

16  |  System Setup
Changing Boot Sequence for Future Boots
1Enter system setup. See Entering System Setup on page 10.
2Scroll using the mouse or use the arrow keys to highlight the Boot menu option and 
press  to access the menu.
 NOTE: Write down your current boot sequence in case you want to restore it.
3Navigate to Set Boot Priority to change the devices assigned to the following:
–1st Boot
–2nd Boot
–3rd Boot
–4th Boot
–5th Boot
4Double-click or use the arrow keys to highlight the boot priority and...

Flashing the BIOS  |  17
Flashing the BIOS
The BIOS may require flashing when an update is available or when replacing the system 
board. To flash the BIOS:
1Turn on the computer.
2Go to dell.com/support/downloads.
3Under the category Support for Home Users, click Drivers & Downloads Home.
4Locate the Service Tag of your computer. The Service Tag for your computer is on a 
label at the back of your computer. For more information, see the Quick Start Guide 
that shipped with your computer. 
If you have...

18  |  Contacting Alienware
Contacting Alienware
 NOTE: Dell provides online and telephone-based support and service options for 
your Alienware computer. These services may vary by country and product and may 
not be available in your area.
To contact Dell for sales, technical support, or customer service issues:
1Go to dell.com/contactdell.
2Select the appropriate service or support link based on your need.
3Choose the method of contacting Dell that is convenient for you.
If you are in the United...