Apple MD771LL/A manual Unplug all the cables and the power cord from the computer

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Touch the metal on top of the computer.

4Unplug all the cables and the power cord from the computer.

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WARNING: To avoid damaging internal components or the components you want to install, always unplug your Mac Pro. DonÕt attempt to install items while itÕs plugged in.

Chapter 3 Working Inside Your Computer

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Contents User’s Guide Page Contents Index Regulatory Compliance InformationGetting Started Setting Up Your Mac ProPosition your computer and display Plug in the power cord Connect the display Port Connect the keyboard and mouse Connect an Ethernet cablePlug the mouse into a USB port on the keyboard KeyboardMouse Using a Wireless Keyboard and Mouse Need Help Setting Up?Use Setup Assistant Turn on your Mac ProPutting Your Mac Pro to Sleep Putting Your Mac Pro to Sleep or Shutting It DownTo wake your computer from sleep, do one of the following Shutting Down Your Mac ProGetting the Latest Information Getting to Know Your Mac ProBasic Features on the Front of Your Mac Pro FireWire 400 and 800 ports Ports and Connectors on the Back of Your Mac Pro Power socket More Ports and Connectors on the Back PCI Express expansion slots Internal Expansion Options Optical drives To open Mac Help Getting AnswersMore Information Open System Preferences by choosing Apple S ystem Page Working Inside Your Computer Opening the Computer Unplug all the cables and the power cord from the computer Lift the latch while holding the side panel Remove the side panel Installing Memory To install memory Top memory card Working Inside Your Computer Place the side panel in the slot and then push to close Push the latch down to secure the side panel Installing Sata 3 Gbit/s Hard Disk Drives Installing Internal Storage DevicesTo install a hard disk drive Position the connectors towards the rear Replace the side panel and push the latch down to secure it To replace the optical drive Replacing the Optical DriveWorking Inside Your Computer Four extra screws Power cable middle connector Ribbon cable end connector Replace the side panel and push the latch down to secure it About PCI Express Cards To install a PCI Express cardAdding PCI Express Cards Port access cover Port access opening PCI Express slot Did You Know?-Installing a Full-Length PCI CardTo replace the battery Replacing the Internal Backup BatteryWorking Inside Your Computer Page Computer won’t respond or the pointer won’t move Problems with Your Mac ProComputer won’t turn on or start up Status light flashes and the computer won’t start up You are unable to eject a discIf that doesn’t work To force an application to quit Problems with SoftwareYou have a problem with a software program Keeping Your Software Up to Date Problems with AirPort Wireless CommunicationTo check for updated software No image appears on the screen Problems with Your DisplayScreen image appears dim or flickers After you change the screen resolution, desktop icons moveTo use Network Diagnostics Problems with Your Internet ConnectionScreen freezes Light on the front of the display is flashingCheck System Preferences settings Turn the modem off and on to reset the modem hardwareCable Modem, DSL, and LAN Internet Connections PPPoE ConnectionsNetwork Connections To use Apple Hardware Test Using Apple Hardware TestInstalling Mac OS Reinstalling the Software That Came with Your ComputerInstalling Applications To install Mac OSMaximizing Ethernet Performance Online Resources Onscreen Help Learning More, Service, and SupportSystem Profiler Apple Hardware TestCountry Phone Website AppleCare Service and Support InformationLocating Your Serial Number Random-access memory RAM Processor and Memory SpecificationsProcessor AppendixGraphics Card SuperDrive DVD+R DL/DVD±RW/CD-RW SpecificationsVideo Display Modes Data formatsFireWire Specifications USB SpecificationsPower Ethernet SpecificationsBluetooth 2.0+EDR Specifications Optional Optical Digital Audio Specifications AirPort Extreme Specifications OptionalCompatibility Optical digital audio outAnalog audio line in typical values Analog Audio SpecificationsAnalog audio out using the headphone jack typical values Power Requirements for Expansion Cards and Peripherals Power SupplyDimensions and Operating Environment System Clock and BatteryBattery DimensionsSafety, Maintenance, and Ergonomics Apple and the Environment General MaintenanceMaintaining Your Display Protecting Your Optical DriveTo keep your optical drive working properly To maintain your display and ensure its long lifeImportant Ergonomic and Health-Related Information Forearms and hands in a straight line Avoid Hearing Damage Compliance Statement Wireless Radio Use Korea Mouse Statement Apple and the Environment Disposal and Recycling Information Taiwan European Union-Disposal Information Page Index Index