Dell Alienware X51 User manual

www.dell.com | support.dell.com/manuals

Alienware X51

Owner’s Manual

Regulatory model: D05S

Regulatory type: D05S001

book.book Page 1 Tuesday, January 17, 2012 10:32 PM

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better

use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or

loss of data, and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage,

personal injury, or death.

____________________

Information in this document is subject to change without notice.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.

is strictly forbidden.

Trademarks used in this text: Dell™ and the DELL logo are trademarks of Dell Inc.

Alienware®is a registered trademark of Alienware Corporation.

Microsoft®, Windows®, and the Windows start button logo are either trademarks or registered

trademarks of Microsoft Corporation in the United States and/or other countries.

Other trademarks and trade names may be used in this document to refer to either the entities claiming

the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and

trade names other than its own.

2012 - 01 Rev. A00

book.book Page 2 Tuesday, January 17, 2012 10:32 PM

Contents 3

Contents

1 About Your Computer. . . . . . . . . . . . . . . . . 5

Front View . . . . . . . . . . . . . . . . . . . . . . . . . 5

Back View . . . . . . . . . . . . . . . . . . . . . . . . . 6

Specifications . . . . . . . . . . . . . . . . . . . . . . . 6

2 Before You Begin. . . . . . . . . . . . . . . . . . . . 7

Turn Off Your Computer and

Connected Devices . . . . . . . . . . . . . . . . . . 7

Safety Instructions . . . . . . . . . . . . . . . . . . 7

3 Working Inside Your Computer . . . . . . . . . 9

4 System Setup . . . . . . . . . . . . . . . . . . . . . . 11

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 11

Entering System Setup . . . . . . . . . . . . . . . . . . 11

System Setup Screens . . . . . . . . . . . . . . . 12

System Setup Options . . . . . . . . . . . . . . . 12

Boot Sequence . . . . . . . . . . . . . . . . . . . 16

book.book Page 3 Tuesday, January 17, 2012 10:32 PM

4Contents

5 Flashing the BIOS . . . . . . . . . . . . . . . . . 19

6 Contacting Alienware . . . . . . . . . . . . . . 21

Websites . . . . . . . . . . . . . . . . . . . . . . 21

book.book Page 4 Tuesday, January 17, 2012 10:32 PM

About Your Computer 5

About Your Computer

Front View

NOTE: Your Alienware X51 computer supports dual orientation. You can place your

computer vertically or horizontally. The rotatable AlienHead allows you to change

the direction of the AlienHead depending on the orientation of your computer.

1 power button 2 optical-drive eject button

3 optical drive 4 rotatable AlienHead

5 microphone connector 6 headphone connector

7 USB 2.0 connectors (2)

book.book Page 5 Tuesday, January 17, 2012 10:32 PM

6About Your Computer

Back View

Specifications

For more information on specifications of your computer,

see support.dell.com/manuals.

1 optical S/PDIF connector 2 HDMI connector

3 USB 2.0 connectors (4) 4 USB 3.0 connectors (2)

5 audio connectors (6) 6 hard-drive activity light

7 AC-adapter connector 8 discrete graphics card

9 security-cable slot 10 network connector and

network lights

11 coaxial S/PDIF connector

book.book Page 6 Tuesday, January 17, 2012 10:32 PM

Before You Begin 7

Before You Begin

Turn Off Your Computer and Connected Devices

CAUTION: To avoid losing data, save and close all open files and exit all open

programs before you turn off your computer.

Save and close all open files and exit all open programs.

Click

Start

and click

Shut Down

Microsoft Windows shuts down and then the computer turns off.

NOTE: If you are using a different operating system, see the documentation

of your operating system for shut-down instructions.

Disconnect your computer and all attached devices from their

electrical outlets.

Disconnect all telephone cables, network cables, and attached devices

from your computer.

Press and hold the power button, while the computer is unplugged,

to ground the system board.

Safety Instructions

Use the following safety guidelines to protect your computer from potential

damage and ensure your personal safety.

WARNING: Before you begin, read the safety information that shipped with your

computer. For additional safety best practices information, see the Regulatory

Compliance Homepage at dell.com/regulatory_compliance.

CAUTION: To avoid damaging the computer, ensure that the work surface is flat

and clean.

CAUTION: Only a certified service technician is authorized to remove the

computer cover and access any of the components inside the computer. See the

safety instructions for complete information about safety precautions and

protecting against electrostatic discharge.

book.book Page 7 Tuesday, January 17, 2012 10:32 PM

8Before 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 connectors with locking tabs or

thumb-screws that you must disengage before disonnecting the cable. When

disconnecting cables, keep them evenly aligned to avoid bending any connector

pins. When connecting cables, ensure that the connectors and ports are correctly

oriented and aligned.

CAUTION: To disconnect a network cable, first unplug the cable from your

computer and then unplug the cable from the network device.

NOTE: Ensure that you remove the security cable from the security-cable slot,

if applicable.

book.book Page 8 Tuesday, January 17, 2012 10:32 PM

Working Inside Your Computer 9

Working Inside Your Computer

CAUTION: Only a certified service technician is authorized to remove the

computer cover and access any of the components inside the computer. See the

safety instructions for complete information about safety precautions and

protecting against electrostatic discharge.

For information on removing and replacing the internal component of

your computer, contact Alienware. See "Contacting Alienware" on page 21.

book.book Page 9 Tuesday, January 17, 2012 10:32 PM

10 Working Inside Your Computer

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

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