Alienware X51 Owner's Manual

www.dell.com | support.dell.com/manualsAlienware X51Owner’s ManualRegulatory model: D05SRegulatory type: D05S001book.book Page 1 Tuesday, January 17

10 Working Inside Your Computerbook.book Page 10 Tuesday, January 17, 2012 10:32 PM

System Setup 114System SetupOverviewUse the system setup to:• get information about the hardware installed in your computer, such as the amount of RAM

12 System SetupSystem Setup ScreensThe system setup screen displays current or changeable configuration information for your computer. Information on

System Setup 13Memory InformationTotal Memory Displays the total memory of the computer.Memory Available Displays the amount of memory available on th

14 System SetupAdvanced — CPU Configuration Hyper-threading TechnologyIf disabled only one thread per enabled core is active.XD Bit Capability Enable

System Setup 15SecuritySupervisor Password: Allows you to change the supervisor password.User Password: Allows you to change the user password. You ca

16 System SetupBoot SequenceThis feature allows you to change the boot sequence for devices.Boot Options•Diskette Drive — The computer attempts to boo

System Setup 17Changing Boot Sequence for the Current BootYou can use this feature to change the current boot sequence, for example, to boot from the

18 System Setupbook.book Page 18 Tuesday, January 17, 2012 10:32 PM

Flashing the BIOS 195Flashing the BIOSThe BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS:

Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicat

20 Flashing the BIOSbook.book Page 20 Tuesday, January 17, 2012 10:32 PM

Contacting Alienware 216Contacting Alienware NOTE: Dell provides several online and telephone-based support and service options for your Alienware co

Contents 3Contents1 About Your Computer. . . . . . . . . . . . . . . . . 5Front View . . . . . . . . . . . . . . . . . . . . . . . . . 5Back View. .

4 Contents5 Flashing the BIOS . . . . . . . . . . . . . . . . . 196 Contacting Alienware . . . . . . . . . . . . . . 21Websites . . . . . . . .

About Your Computer 51About Your ComputerFront View NOTE: Your Alienware X51 computer supports dual orientation. You can place your computer vertical

6 About Your ComputerBack ViewSpecificationsFor more information on specifications of your computer, see support.dell.com/manuals.1 optical S/PDIF con

Before You Begin 72Before You BeginTurn Off Your Computer and Connected Devices CAUTION: To avoid losing data, save and close all open files and exit

8 Before You Begin CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connecto

Working Inside Your Computer 93Working Inside Your ComputerCAUTION: Only a certified service technician is authorized to remove the computer cover and