Dell 260S owner manual Recommended Tools, Turning Off Your Computer

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To avoid damaging your computer, perform the following steps before you begin working inside the computer.

1.Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

2.Turn off your computer (see Turning Off Your Computer).

CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.

3.Disconnect all network cables from the computer.

4.Disconnect your computer and all attached devices from their electrical outlets.

5.Press and hold the power button while the computer is unplugged to ground the system board.

6.Remove the cover.

CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal components.

Recommended Tools

The procedures in this document may require the following tools:

Small flat-blade screwdriver

Phillips screwdriver

Small plastic scribe

Flash BIOS update program media

Turning Off Your Computer

CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer.

1.Shut down the operating system:

In Windows 7:

Click Start, then click Shut Down.

In Windows Vista:

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Contents Regulatory Model D11M Regulatory Type D11M001 Page Contents Hard Drive System Board Page Working on Your Computer Before Working Inside Your ComputerRecommended Tools Turning Off Your ComputerAfter Working Inside Your Computer Page Cover Removing The CoverInstalling The Cover Front Bezel Removing The Front BezelInstalling The Front Bezel Expansion Card Removing The Expansion CardsInstalling The Expansion Card Fan Removing The FanInstalling The Fan Memory6 Removing The MemoryInstalling The Memory Optical Drive Removing The Optical DriveInstalling The Optical Drive Hard Drive Removing The Hard DriveInstalling The Hard Drive Wireless Local Area Network Wlan Card Removing The Wlan CardInstalling The Wlan Card Multimedia-Card Reader Removing The Multimedia-Card ReaderInstalling The Multimedia-Card Reader Power Supply Removing The Power SupplyInstalling The Power Supply Power-Switch Cable Removing The Power Switch CableInstalling The Power Switch Cable Input/Output Panel Removing The I/O PanelInstalling The I/O Panel Processor14 Removing The ProcessorPage Installing The Processor Follow the procedures in After Working Inside Your Computer Coin-Cell Battery Removing The Coin-Cell BatteryInstalling The Coin-Cell Battery System Board Removing The System BoardPage Installing The System Board Page Specifications17 SpecificationsProcessor MemoryAudio NetworkSystem Information Expansion BusDrives External ConnectorsCards Physical Control Lights And Diagnostic LightsPower Environmental Page Power LED Light Status Possible Cause Troubleshooting Steps TroubleshootingDiagnostic Power LED Codes Diagnostic Beep Codes Beep Possible Cause Troubleshooting StepsError Messages Description Diagnostic Error MessagesBeep Possible Cause Troubleshooting Steps Processor Failure Error Messages General FailureController test in the Dell Diagnostics DiagnosticsTest in the Dell Diagnostics Error Messages Contact Dell System Error Messages Dell DiagnosticsTime options Keyboard Controller testSystem Message Description Page System Setup System Setup OverviewEnter System Setup System Setup ScreensAction System Setup Option Processor InformationMemory Information Device InformationPower Management CPU ConfigurationSystem Configuration Boot Post BehaviourPage Contacting Dell Contacting Dell
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