Dell SX260 technical specifications Power Button, Hyper-Threading, Hung Computer

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Power Button

NOTICE: To turn off your computer, perform an orderly computer shutdown when possible.

You can use the ACPI feature to configure the function of the Microsoft Windows 2000, and Windows XP operating systems.

Power Button Functions for Windows 2000 and Windows XP With ACPI Enabled

Action

Results

 

 

 

 

 

 

 

Computer Turned

Computer

Computer

 

On

in Standby

Turned Off

 

and ACPI Enabled

Mode

 

 

 

 

 

Press

Computer goes into

Computer

Boots and

power

standby mode or

turns on

computer

button

turns off (depending

 

turns on

 

on the operating

 

 

 

system setup)

 

 

Hold

Computer turns off

Computer

Boots and

power

 

turns off

computer

button

 

 

turns on

for 6

 

 

 

seconds*

 

 

 

 

 

 

 

*Pressing or holding the power button to shut down the computer may result in data loss. Use the power button to shut down the computer only if the operating system is not responding.

Power Button Functions for Windows 2000 and Windows XP With ACPI Disabled

Action

Results

 

 

 

 

 

 

 

Computer

Computer in

Computer

 

Turned On and

Suspend

Turned Off

 

ACPI Disabled

Mode

 

 

 

 

 

Press

Computer

Computer

Boots and

power

turns off

turns off

computer

button

immediately

immediately

turns on

 

 

 

 

Hold power

Computer

Computer

Boots and

button for 6

turns off

turns off

computer

seconds*

 

 

turns on

 

 

 

 

*Pressing or holding the power button to shut down the computer may result in data loss. Use the power button to shut down the computer only if the operating system is not responding.

Hung Computer

If the computer does not turn off when you press the power button, the computer may be hung. Press and hold the power button until the computer turns off completely (this process may take several seconds). If the computer is hung and the power button fails to function properly, unplug the AC power cable from the computer, wait for the computer to completely stop running, and plug in the AC power cable. If the computer does not restart, press the power button to restart the computer.

Hyper-Threading

Hyper-Threading is an Intel® technology that can enhance overall computer performance by allowing one physical microprocessor to function as two logical microprocessors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft® Windows® XP SP1 or later operating system because Windows XP is optimized to take advantage of Hyper-Threading technology. While many programs can benefit from Hyper-Threading, some programs have not been optimized for Hyper-Threading and may require an update from the software manufacturer. Contact the software manufacturer for updates and information about using Hyper-Threading with your software.

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Contents Dell OptiPlex SX260 Systems Users Guide Abbreviations and AcronymsRegulatory Notices FCC Notices U.S. OnlyClass a Class B IC Notice Canada OnlyFCC Identification Information CE Notice European Union Energy Star ComplianceSimplified Chinese Class a Warning Notice China Only Energy Star EmblemClass a ITE Vcci Class a ITE Regulatory MarkClass B ITE MIC Notice Republic of Korea OnlyClass a Device Polish Center for Testing and Certification Notice Class B DeviceBsmi Notice Taiwan Only NOM Information Mexico Only Back to Contents Warranty and Return Policy Front View About Your ComputerBack View Back-Panel Connectors Inside Your ComputerOrientations Standard OrientationsChassis Stand Cable Cover Attaching the Cable CoverRemoving the Cable Cover Mounting PlateAttaching the Computer to the Mounting Plate Removing the Computer from the Mounting Plate Connecting the Power Adapter Back to Contents Diagnostic Lights Advanced TroubleshootingLight Problem Description Suggested Resolution Pattern Beep Codes Code Cause ActionWhen to Use the Dell Diagnostics Dell DiagnosticsStarting the Dell Diagnostics Dell Diagnostics Main Menu Starting the Dell Diagnostics From Your Hard DriveOption Function Reinstalling Drivers Reinstalling Microsoft Windows XPBefore You Reinstall Tab FunctionBooting From the Operating System CD Reinstalling Windows XPWindows XP Setup Reinstalling Microsoft Windows Click Performance and Maintenance, and then click SystemResolving Software and Hardware Incompatibilities Windows XPWindows Page Advanced Features LegacySelect Technology ControlManageability Alert Standard FormatOption Settings SecurityDell OpenManage Client Instrumentation Chassis Intrusion DetectionSystem Password Password ProtectionAssigning a System Password Typing Your System Password Deleting or Changing an Existing System PasswordIf Password Status is set to Unlocked If Password Status is set to LockedSetup Password Assigning a Setup PasswordOperating Your Computer With a Setup Password Enabled Deleting or Changing an Existing Setup PasswordDisabling a Forgotten Password and Setting a New Password System SetupEntering System Setup System Setup Screens Keys Action Boot Device Menu Boot Options System Setup and Diagnostics Options Changing Boot Sequence for Future BootsSystem Setup Options FastbootCPU Information HDD PriorityJumper Settings Jumper Setting DescriptionHyper-Threading Power ButtonHung Computer Click Hardware and click Device Manager Battery Properly dispose of the old battery Back to Contents Cleaning Your Computer Before Cleaning Your ComputerComputer, Keyboard, and Monitor MouseCDs and DVDs Installing a CD/DVD Device When Your Computer Is Turned Off Module BayInstalling a CD/DVD Device When Your Computer Is Running Microsoft Windows XPPage Windows Back to Contents Replacing the Computer Cover Removing the Computer Cover Documentation for Your Computer Ergonomic Computing Habits Back to Contents Finding Information for Your Computer What Are You Looking For? Find It HereDell Support website Getting Help Online ServicesTechnical Assistance AutoTech Service Automated Order-Status ServiceTechnical Support Service Ftp.dell.comDiagnostics Checklist Problems With Your OrderBefore You Call Contacting Dell Belgium Brussels Website support.euro.dell.com BermudaBolivia BrazilDenmark Copenhagen Website support.euro.dell.com DominicaDominican Republic EcuadorIndia Ireland Cherrywood Website support.euro.dell.comItaly Milan Website support.euro.dell.com JamaicaLuxembourg Website support.euro.dell.com MacaoMalaysia Penang MexicoPanama PeruPoland Warsaw Website support.euro.dell.com PortugalCustomer Care website dell.co.uk/lca/customerservices Sweden Upplands Vasby Website support.euro.dell.comSwitzerland Geneva Website support.euro.dell.com TaiwanVirgin Islands BusinessVenezuela Glossary C D E F G H I K L M N O P R S T U V W X ZDevice driver See driver Page Page Page Video resolution See resolution Back to Contents Hard Drive Page ALERT! Cover was previously removed Back to Contents Removing a Memory Module MemoryAdding a Memory Module Connector Memory connectors on system boardMemory module NotchBack to Contents Adding and Removing Parts Microprocessor Page Page ALERT! Cover was previously removed Back to Contents When Working Inside Your Computer GeneralProtecting Against Electrostatic Discharge Battery DisposalErgonomic Computing Habits Solving Problems Battery ProblemsPower Light Problem Description Suggested Resolution System LightsDrive Problems Floppy drive problemsCD drive problems Problems writing to a CD-RW driveRepairing a Wet Computer DVD drive problemsHard drive problems Test the hard driveError Messages Dropped or Damaged ComputerCheck the memory and cable connections Click Control Panel Click Add or Remove ProgramsGeneral failure The operating example, Printer out of paper No boot sector on hard-disk driveKeyboard failure General Problems Computer stops respondingProgram stops responding End the programOther software problems Other technical problemsGeneral hardware problems Program crashes repeatedlyMemory Problems Keyboard ProblemsMouse Problems Network Problems Power ProblemsPrinter Problems Serial or Parallel Device ProblemsVerify the printer cable connections Verify that the printer is recognized by WindowsSound and Speaker Problems No sound from headphonesReinstall the audio sound driver See Dell Diagnostics No sound from speakersSystem Board Problems Video and Monitor ProblemsIf the screen is blank If the screen is difficult to readAdjust the Windows display settings Click Appearance and ThemesTechnical Specifications Power Key CombinationsControls and Lights PhysicalBack to Contents System Board Components Microsoft Windows XP Features OverviewNew User Interface Help and Support CenterSwitching to Classic View Clean Desktop WizardClick Clean Desktop Now Click PropertiesFiles and Settings Transfer Wizard Notification Area CleanupApplication and Device Compatibility Taskbar GroupingUsing System Restore System RestoreScheduled Automatic Restore Points Event-Triggered Restore Points Restore ProcessManual Restore Points User Accounts and Fast User Switching How to Use Fast User SwitchingWhat Happens When a Fast User Switch Occurs? Driver RollbackSpecial Considerations With Fast User Switching How to Turn Off Fast User SwitchingHow to Add Users Click Apply OptionsNetwork Setup Wizard Click checklist for creating a networkHome and Small Office Networking Internet Connection FirewallBack to Contents
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