Dell 3550 owner manual Turning Off Your Computer

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3.If the computer is connected to a docking device (docked), undock it.

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

4.Disconnect all network cables from the computer.

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

6.Close the display and turn the computer upside-down on a flat work surface.

NOTE: To avoid damaging the system board, you must remove the main battery before you service the computer.

7.Remove the main battery.

8.Turn the computer top-side up.

9.Open the display.

10.Press the power button to ground the system board.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the display.

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.

11.Remove any installed ExpressCards or Smart Cards from the appropriate slots.

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 8.1:

Using a touch-enabled device:

a.Swipe in from the right edge of the screen, opening the Charms menu and select Settings.

b.Select the and then select Shut down.

Or

*On the Home screen, touch the and then select Shut down.

Using a mouse:

a.Point to upper-right corner of the screen and click Settings.

b.Click the and select Shut down.

Or

*On the Home screen, click and then select Shut down.

In Windows 7:

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Contents Dell Latitude Page Contents Specifications Contacting Dell Working on Your Computer Before Working Inside Your ComputerTurning Off Your Computer After Working Inside Your Computer Recommended Tools Removing the Base CoverInstalling the Base Cover Removing the Battery Installing the BatteryBase Cover Battery Removing the Hard DriveInstalling the Hard Drive Removing the Wlan CardInstalling the Wlan Card Removing the System FanBase Cover Battery Installing the System Fan Removing the KeyboardPage Installing the Keyboard Page Page Page Base Cover Battery Hard Drive System Fan Keyboard Removing the Base FrameInstalling the Base frame Removing the Heatsink Installing the Heatsink Removing the I/O BoardInstalling the I/O Board Removing the Coin-Cell BatteryInstalling the Coin-Cell Battery Removing the Display AssemblyPage Installing the Display Assembly Removing the Display BezelInstalling the Display Bezel Removing the Display PanelPage Installing the Display panel Removing the Display HingeInstalling the Display Hinge Removing the CameraInstalling the Camera Removing the System BoardPage Installing the System Board Removing the SpeakersInstalling the Speakers Removing the Power Connector Installing the Power Connector Boot Sequence Navigation KeysSystem Setup Options Uefi Video Security KEK Performance Page Post Behavior Updating the Bios WlanSystem and Setup Password Password TypePage Diagnostics Enhanced Pre-Boot System Assessment ePSA DiagnosticsBattery Status Lights Device Status LightsSpecifications UMA VGA Feature Description Axis 102.4 mm 4.03 inches Mm 3.04 inches Physical Contacting Dell
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