General Information

Power Mac Dual Fan Wiring Diagram

In the Power Mac G5, PC3200 400 DDR-SDRAM DIMMs must be installed in pairs of equal size and speed. Memory from older Macintosh computers is not compatible. Do not try to install non-DDR memory as it will not fit in the DIMM slots and could cause damage. The computers ship with a minimum of 256 MB of RAM, provided by a pair of 128 MB DIMMs installed in the two DIMM slots marked 1. You can add DIMMs, provided they are installed as a pair of equal size, in the two DIMM slots marked 2. A diagram...

Serial ATA Hard Drive Data Cable

The only tool required for this procedure is a small wire cutter. Before you begin, open the computer and remove the hard drive s . 1. Clip off the connector from the hard drive end of the upper hard drive data cable. 2. Disconnect the cable from the logic board, pull the cable out of the hard drive bay, and remove the cable from the enclosure. Replacement Note When installing the replacement upper hard drive cable, first route the cable through the opening in the hard drive bay. 1. Clip off...

Bluetooth Card

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer and lay it on its side with the access side facing up. Part Location 1. Remove the two Bluetooth card mounting screws. 2. Lift the Bluetooth card straight up a short distance to disconnect it from the logic board. Then turn the card over, and disconnect the Bluetooth antenna cable from the underside of the card. Replacement Note Be very careful connecting the antenna cable to the Bluetooth...

Modem Filter Board and Cable

Powermac Inlet Sensor

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following Airport Extreme Card if installed 1. Remove the modem cable from the clips on the underside of the logic board. 2. Remove the two screws that secure the antenna board, lift the board, and remove the modem cable from underneath the board. 4. Slide the modem filter board back to disengage it from its mounting bracket,...

Power Button

Mac Pro Power Button Led

The only tool required for this procedure is a jeweler's flat-blade screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the front panel board Note The power button is located under the front panel board. 1. Lay the computer so that the front panel is facing down. 2. Remove the black rubber cap that covers the power button LED. 3. Using a flat-blade jeweler's screwdriver, pry up the metal C-ring that secures the power button board. 4....

Processor Inlet Frame

Warning The processor, heatsink, and logic board are a unit. Never separate the three, or you will damage the modules and void the warranty. The only parts you may remove from the unit are the heatsink cover and processor inlet frame. No tools are required for this procedure. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the heatsink cover. 1. Lift the processor inlet frame straight up a short distance to disengage the openings in the frame...

Front Panel Board Cable

Front Panel Connector

No tools are required for this procedure. Before you begin, open the computer and lay it on its side with the access side facing up. 1. Remove the covers from the connectors on each end of the front panel board cable. 1. Remove the covers from the connectors on each end of the front panel board cable. 2. Disconnect the cable from the logic board. 3. Disconnect the other end of the cable from the front panel board and remove the cable from the enclosure.

Rear Exhaust Fans

The only tool required for this procedure is needlenose pliers. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the heatsink cover. 1. Press down on the two tabs on the top of the fan bracket to release the two latches. 2. Lift the fan bracket and fans a short distance out of the enclosure. Warning Lift the bracket only a short distance because the fans are connected to the logic board by a cable. You will disconnect the cable in the next step....

Front Panel Board

The only tools required for this procedure are a jeweler's flat-blade screwdriver and a Phillips screwdriver. Before you begin, open the computer and lay it on its side with the access side facing up. 1. Remove the connector cover from the front panel board cable. 2. Disconnect the front panel board cable from the front panel board. 3. Using a jeweler's flatblade screwdriver, pry up the metal cap covering the front panel board EMI shield. 4. Using a Phillips screwdriver, remove the two front...

Symptom Charts

The Symptom Charts included in this chapter will help you diagnose specific symptoms related to the product. Because cures are listed on the charts in the order of most likely solution, try the cures in the order presented. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. Note If a cure instructs you to replace a module, reinstall the original module before you proceed to the next cure. Important The only way to shut off power...

Internal

Image Mac Pci Slot

Optical Digital Audio In Optical Digital Audio Out AGP Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 Optical Digital Audio In Optical Digital Audio Out AGP Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 USB 2.0 Port USB 2.0 Port FireWire 400 Port FireWire 800 Port Ethernet Port Modem Filter Board

Modem Board

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer and lay it on its side with the access side facing up. 1. Remove the two screws that secure the modem board. 2. Lift the board slightly and disconnect the modem filter cable from the modem board. 2. Lift the board slightly and disconnect the modem filter cable from the modem board. 3. Remove the modem from the enclosure. Important Be sure to reconnect the modem filter cable before...

Air Deflector Sensor Board

Powermac Air Deflector

The only tool required for this procedure is a flat-blade screwdriver. A small mirror to use in locating the board is optional. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following Airport Extreme Card if installed The air deflector sensor board is located inside the enclosure on the bottom right front corner of the frame. You may find a small mirror useful in locating the board. 1. Disconnect the sensor cable from the air deflector...

Media Bay Sensor Board

Powermac Temperature Sensor Board

The only tool required for this procedure is a flat-blade screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the hard drive s . 1. Using a flat-blade screwdriver, carefully pry the sensor board from the frame. Note Double-stick tape on the back of the board attaches it to the frame. 2. Pull the board forward slightly so that you can reach the cable connector. Note The board's cable may be taped to the frame and therefore offer some...

Heatsink Cover

Warning The processor, heatsink, and logic board are a unit. Never separate the three, or you will damage the modules and void the warranty. The only parts you may remove from the unit are the heatsink cover and processor inlet frame. This procedure requires the following tools Two flat-blade screwdrivers Jeweler's flat-blade scewdriver In addition, you may need the following tools for removing the locking rivet Before you begin, open the computer and lay it on its side with the access side...

Optical Drive

Important When installing a replacement optical drive, use the original Apple cables that came with the Power Mac G5. No tools are required for this procedure. Before you begin, open the computer. 1. Disconnect the optical drive ribbon cable from the logic board. The cable connector is located under the media shelf that holds the optical drive. 3. Place the fingers on one hand inside the opening for the optical drive cable and push the edge of the drive forward. The drive will move part way out...

Air Port Extreme Card

Only the AirPort Extreme Card may be installed in the Power Mac G5. Older AirPort Cards do not work in this computer. No tools are required for this procedure. Before you begin, open the computer and lay it on its side with the access side facing up. 1. Carefully disconnect the antenna cable from the end of the AirPort Extreme Card. 2. Pull the card straight back out of the enclosure. Replacement Note Placing a hand on each side of the card, guide the card down into the logic board connector,...

Memory DIMMs

Power Mac G5 Late 2004 computers have four Dual Inline Memory Module DIMM slots. Each slot accepts 400 Mhz Double-Data-Rate DDR Synchronous Dynamic Random-Access Memory SDRAM devices. The computers ship with a minimum of 256 MB of RAM, provided by a pair of 128 MB DIMMs installed in the two DIMM slots marked 1. You can add DIMMs, provided they are installed as a pair of equal size, in the two DIMM slots marked 2. A diagram on the logic board near the DIMM slots illustrates how the pairs must be...

Serial ATA Hard Drive

Power Mac Hard Drive Bays

The Power Mac G5 computer can accommodate two serial ATA hard drives in its internal hard drive bay. In most configurations, a single hard drive occupies the top portion of the bay. You can install one additional serial ATA hard drive in the empty slot in the bay. Important Use the original Apple cables that came with the Power Mac G5 when installing ATA hard drives. The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer. 1. Release the drive...

Opening the Computer

No tools are required for this procedure. Warning Always shut down the computer before opening it to avoid damaging its internal components or the components you are installing. Do not open the computer or attempt to install items inside it while it is on. 2. Wait 5 to 10 minutes to allow the computer's internal components to cool. Warning After you shut down the system, the internal components can be very hot. You must let the computer cool down before continuing. 3. Unplug all external cables...

Power Supply

How Remove Mac Power Supply

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following Airport Extreme Card if installed 1. Remove the two screws that secure the power supply top cover, and remove the cover from the enclosure. Warning Whenever the power supply cover is removed, be very careful not to drop any screws into the power supply. Doing so could short out the unit. Remove the four power supply...

Battery

Macbook Parts Battery Clip

No tools are required for this procedure. You may, however, find a jeweler's flat-blade screwdriver useful in removing the battery from its holder. Before you begin, open the computer and lay it on its side with the access side facing up. If a PCI card is installed in the slot next to the battery, remove the card. 1. Insert a fingernail or jeweler's flat-blade screwdriver into the cut-out in the side of the battery holder and lift the battery slightly. 2. Slide the battery out from underneath...

Logic Board

Mac Apple Unit Central

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following Airport Extreme Card if installed Important The processor heatsink is part of the logic board and must not be removed separately. Remove and replace the logic board and processor as a unit. 1. Disconnect the five cables from the top of the logic board. 2. Disconnect the two power supply cables and the front panel...

PCI Divider

Power Mac Pci Fan

The only tool required for this procedure is a Phillips screwdriver. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following Airport Extreme Card if installed 1. If no Airport Extreme Card or Bluetooth card was installed in the computer, disconnect their cables from the clips on the PCI divider. 2. Disconnect the modem filter cable from the clip on the PCI divider. 3. Remove the three black mounting screws above the PCI divider and the...