If you have | Apple MD772LL/A, MC561LL/A, MD770LL/A, MC560LL/A

If you install equal-size DIMMs (for example, all 1 GB DIMMS or all 2 GB DIMMS) in your quad-core or 6-core Mac Pro, Apple recommends that you fill the slots in the order listed in the table.

	Slot 4
	Slot 3
	Slot 2
	Slot 1
If you have	Fill these slots
Two DIMMs	1 and 2
Three DIMMs	1, 2, and 3
Four DIMMs	1, 2, 3, and 4 (all)

Note: If you install different-size DIMMs in your Mac Pro, follow the order in the table. If the DIMM configuration you install doesn’t provide optimized performance, the Memory Slot Utility appears onscreen and recommends an improved configuration.

To use the utility again, go to /System/Library/CoreServices/Memory Slot Utility.

Chapter 3 Making a Good Thing Better

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Apple MD772LL/A, MC561LL/A, MD770LL/A, MC560LL/A manual If you have

Contents

Page Welcome to your Mac Pro OS X Lion Page Contents What’s Under the Hood Looking for Something? Page Ready, Set Up, Go Ready, Set Up, Go Position your Mac Pro and display Setting Up Your Mac Pro Plug in the power cord Connect the display Mini DisplayPort Connect an Ethernet cable or join a Wi-Fi network Connect the USB cable from your keyboard Turn on your Apple Magic Mouse Turn on your Mac Pro To set up your Mac Pro Customize Your Desktop and Set Your Preferences Need Help Setting Up? Putting Your Mac Pro to Sleep Putting Your Mac Pro to Sleep or Shutting It Down To wake your Mac Pro from sleep, do one of the following Shutting Down Your Mac ProTo turn off your Mac Pro, do one of the following Life with Your Mac Pro Basic Features on the Front of Your Mac Pro Two FireWire 800 ports Power buttonOptical drive Two USB 2.0 ports Features of Your Apple Keyboard Escape key esc Volume keys F11, F12Brightness keys F1, F2 Mission Control key F3 Ports and Connectors on the Back of Your Mac Pro ¥ Locking latch Power socketThree USB 2.0 ports Two Gigabit Ethernet ports with jumbo frame support More Ports and Connectors on the Back Analog audio line-in port PCI Express expansion slotsAnalog audio line-out port Internal Expansion Options Optical drives BatteryHard disk drives or solid state drives PCI Express slots More Information Getting AnswersTo open Help Center Using iLife applications Page Making a Good Thing Better ÂÂ Replacing the Internal Backup Battery on Opening Your Mac Pro Touch the metal case to discharge static Making a Good Thing Better Making a Good Thing Better ÂÂ Error-correcting code ECC Installing Memory One processor To install memory Installing Memory in a Quad-Core or 6-Core Mac Pro Latches Making a Good Thing Better Processor tray If you have Connectors Notch Ejectors Processor tray Latch Place the side panel in the slot and then push to close Making a Good Thing Better To install memory in a dual-processor Mac Pro Installing Memory in an 8‑Core or 12‑Core Mac Pro Latches Making a Good Thing Better Processor tray Fill these slots Connectors Notch Ejectors Processor tray Latch Installing Internal Storage Devices To install a hard disk drive Installing Serial ATA Hard Disk Drives Connectors Drive connectors To install a solid state drive Installing a Solid State Drive Unused screws Drive connectors To replace the optical drive Replacing an Optical Drive Pull the carrier halfway out of the optical drive bay Making a Good Thing Better Making a Good Thing Better Cable middle connector Cable end connector Making a Good Thing Better About PCI Express Cards Adding PCI Express Cards To install a PCI Express card If You’re Installing a Full-Length PCI Card PCI slider Hook on card Retention bar Brace PCI bracket Replacing the Internal Backup Battery Making a Good Thing Better Problem, Meet Solution An Ounce of Prevention If the computer doesn’t respond or the pointer doesn’t move Problems with Your Mac Pro If you’re unable to eject a disc If the computer doesn’t turn on or start up To force an application to quit Problems with Software If you have a problem with a software program Repairing, Restoring, or Reinstalling Mac OS X Software Problem, Meet Solution To connect via a Wi-Fi network Repairing a Disk with Disk UtilityTo open the Mac OS X Utilities application Reinstalling Mac OS X and Apple Applications Restoring Information Using a Time Machine Backup To install optional software, click Customize Click Install Restoring Your Computer to Its Factory Settings To use Apple Hardware Test Checking for a Hardware Problem To check for updated software Problems with Wi-Fi CommunicationKeeping Your Software Up to Date If no image appears on the screen Problems with Your Display If the screen image appears dim or flickers If desktop icons move when you change the screen resolution To use Network Diagnostics Problems with Your Internet ConnectionIf the screen freezes If your display has a light on the front and it’s flashing Cable Modem, DSL, and LAN Internet Connections To enter PPPoE settings Network Connections To replace the batteries in the Apple Magic Mouse Replacing the Apple Magic Mouse Batteries Maximizing Ethernet Performance Learning More, Service, and Support Online Resources Onscreen Help AppleCare Service and SupportSystem Information Apple Hardware Test 101 Country Phone Website Locating Your Serial Number What’s Under the Hood Processor and Memory Specifications SpecificationsQuad-core Mac Pro Core Mac Pro Graphics Card Random-access memory RAM105 Storage Video Display ModesPCI Express Expansion 107 SuperDrive DVD±R DL/DVD±RW/CD-RW Specifications FireWire Specifications USB SpecificationsPower Optical Digital Audio Specifications AirPort Extreme SpecificationsCompatibility Optical digital audio out Analog audio out using the headphone jack typical values Analog Audio SpecificationsOptical digital audio Analog audio line out typical values Analog audio line in typical values111 Power Requirements for Expansion Cards and Peripherals Power SupplySystem Clock and Battery Dimensions Dimensions and Operating EnvironmentOperating environment 113Page Last, but Not Least Always take the following precautions Important Safety Information 117 General Maintenance Laser Information for Optical Disc Drive Protecting Your Optical DriveTo keep your optical drive working properly Maintaining Your Display Apple Magic Mouse Class 1 Laser InformationTo maintain your display and ensure its long life 119 Keyboard Understanding ErgonomicsMouse Chair 121 Display Avoid Hearing Damage Apple and the Environment 123 Regulatory Compliance Information Canadian Compliance Statement 124 125 Russia External USB Modem Information 126 127 Battery Disposal InformationPage Looking for Something? Index 131 F1 to F19 function keys 27 Finder PCI Express cards 31, 33 installing 74 specifications 133 Page Simultaneously published in the United States and Canada