Assessments - 2, GPA: 4
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See an Apple Authorized Reseller or Service Provider for additional information about this or any other warranty question. 42 Chapter 3 Working Inside Your Computer Opening the Computer 1 Before you open your computer, shut it down by choosing Apple (K) > Shut Down. 2 Wait 5 to 10 minutes to allow the computer’s internal components to cool. 3 Touch the metal PCI access covers on the back of the computer to discharge any static electricity from your body. Important: Always discharge static before you touch any parts or install any components inside the computer. To avoid generating static electricity, do not walk around the room until you have finished installing the expansion card, memory, or internal storage device and closed the computer. Warning: Always shut down your Power Mac G5 before opening it to avoid damaging its internal components or the components you want to install. Do not open the computer or attempt to install items inside it while it is on. Warning: After shutting down your computer, the internal components can be very hot. Let the computer cool down before continuing. Touch the metal portion of the PCI port access covers. Chapter 3 Working Inside Your Computer 43 4 Unplug all the cables and the power cord from the computer. 5 Hold the side panel and lift the latch on the back of the computer. Warning: To avoid damaging its internal components or the components you want to install, always unplug your Power Mac G5. Do not attempt to install items inside the computer while it is plugged in. While holding the side panel, lift the latch. 44 Chapter 3 Working Inside Your Computer 6 Remove the side panel. Important: When you remove the side panel, hold it securely. Pull the top of the side panel away from the computer, and then lift it up and remove it from the computer. Chapter 3 Working Inside Your Computer 45 7 Remove the air deflector and place it on a soft, clean cloth. Important: Always remember to replace the air deflector after you have finished working inside your computer. Your computer will not function properly without the air deflector. Using this finger hold, pull the air deflector away from the computer, and then lift the air deflector up and away from the computer. 46 Chapter 3 Working Inside Your Computer 8 Pull the front fan assembly by the handle to remove it from the computer. Set it aside. Note: You do not need to remove the front fan assembly to install drives, install PCI and AGP cards, or replace the battery. Pull the fan assembly completely out of the computer. Installing Memory Depending upon the model, your Power Mac G5 has four or eight dual inline memory module (DIMM) slots for Double-Data-Rate (DDR) synchronous dynamic random-access memory (SDRAM) devices. Your computer comes with a minimum of 256 MB of random access memory (RAM), installed as a pair of 128 MB DIMMs in two of the DIMM slots. You can install additional pairs of DIMMs in the open DIMM slots on your computer’s main logic board. DIMMs must be installed in equal-sized pairs and fit these specifications: • 400 MHz, PC 3200 DIMMs • 2.5 volt (V) • 184-pin module • Maximum number of memory devices on DDR SDRAM: 16 • Nonparity • No error-correcting codes (NECC) • Unbuffered (registered or buffered DDR SDRAM cannot be used) Important: Memory from older Macintosh computers may not be compatible with your Power Mac G5. Note: When purchasing DDR SDRAM for use in Macintosh computers, make sure that the memory vendor conforms to the JEDEC (Joint Electron Device Engineering Council) specification. Check with your memory vendor to ensure that the DDR SDRAM supports the correct timing modes and that the Serial Presence Detect (SPD) feature has been programmed properly, as described in the JEDEC specification. To check the compatibility of your DDR SDRAM DIMMs, see the Macintosh Products Guide on Apple’s website at You can purchase Apple-branded memory online from the Apple Store at store.apple.com. Chapter 3 Working Inside Your Computer 48 Chapter 3 Working Inside Your Computer To install memory: 1 Open your computer and remove the side panel, air deflector, and fan assembly following the directions that begin on page 42. 2 Locate the DIMM slots in the computer. Important: Always install DIMMs in pairs of equal size and in the order designated in the illustration above. No matter how many SDRAM slots your computer has, the SDRAM DIMMs must be installed in pairs with one DIMM per bank. DIMMs are already installed in these two slots. Install additional DIMMs in these two slots first. If slots are available, and you want to install more memory, install additional DIMMs in a similar fashion: In pairs, one per bank, from the center outward. Bank 1 Bank 2 3 Open the ejectors on the DIMM slots by pushing them out to the sides. 4 Placing one hand on the back of the computer for support, align the first DIMM in the slot and push both ends of the DIMM down until the tabs are vertical and the ejectors snap i...