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Upload Configuration To configure your Speck to upload its data to your account on specksensor.com, do the following:. Ensure you have the Speck configured to Wi-Fi. Click on the Upload Configuration icon on your Speck app. Login using the email and password used when you created your specksensor.com account, or sign up for a new account if you have not yet created one. On the Registration tab, create a custom name for your Speck, and complete by clicking 'Register.' .

On the Location Info tab, name the location of your Speck and complete by using the map to geolocate your Speck. Please be aware that the Speck will not attempt to upload data samples while the Speck app is running and connected to the Speck, so quit the app when you have finished configuring and are ready for uploads to begin. This video demonstrates configuring a Speck for uploads.

Hardware Monitor 5.55 - Hardware monitoring sensor app. Download the latest versions of the best Mac apps at safe and trusted MacUpdate Download, install, or update Hardware Monitor for Mac from MacUpdate.

.  Service Source Power Mac G5 (Late 2005) Power Mac G5 (Late 2005 Dual 2.0/2.3 GHz) and Power Mac G5 (Late 2005 Quad) Updated: 2 November 2006 © 2005 Apple Computer, Inc. All rights reserved.

Power Mac G5 (Late 2005) Contents Repair Extension Program Power Mac G5 (Late 2005)Repair Extension Program 6 Program Overview 6 Eligible Products 6 Repair Strategy 9 Special CompTIA Code 10 Replacement Parts 10 Reimbursement Strategy 11 Basics Overview 13 Gotchas 15. Optical Drive 34 Front Inlet Fan Assembly 38 Memory (DIMMs) 41 Graphics Card/PCI Express Card 44 Battery 50 AirPort Extreme/Bluetooth Combo Card and Runway Card 52 PCI Card Guide 55 Speaker/Fan Assembly 57 Ambient Board 59 Heatsink Cover 61 Rear Exhaust Fan Assembly 64 PCI Divider 68 Media Bay Fan 72 Processor Inlet Frame (Dual 2.0/2.3 GHz) 75. PCI Express Cards 137 Thermal Calibration 138 Resetting the Logic Board 138 Power-On Self Test: RAM and Processor Verification 139 Diagnostic LEDs 139 Power Supply Verification 141 Symptom Charts 144 How to Use the Symptom Charts 144 Startup Failures 144 Fans Other Failures 149 Upgrades.

 Service Source Repair Extension Program Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc. All rights reserved. There are no known safety issues caused by this component failure.

Program Overview The Power Mac G5 (Late 2005) REP for Power Supply Issues covers Power Mac G5 (Late 2005) models with a 1 KW AcBel power supply that exhibit one of the following power symptoms:. Serial Number Identification To identify an eligible Power Mac G5 (Late 2005) computer, first check the computer’s serial number.

Eligible computers have serial numbers with the first five digits falling within one of the ranges noted below:. CK539xxxxxx – CK608xxxxxx. Customers are also responsible for issues that do not relate directly to the specific power supply issues covered by this program. For example, if a Power Mac G5 (Late 2005) computer is taken to an Apple service provider with a power supply failure eligible under the program and a hard drive issue, Apple will cover the power supply repair, but the cost of repairing the hard drive is the customer’s responsibility.

Asia-Pacific, Canada, Europe (except IMCs), Japan, United States Warranty Repairs If a Power Mac G5 eligible for this program is currently covered by an Apple warranty or extended service agreement, service providers should create the repair in the usual manner. Japan (Mail-In Repairs Only) Service providers in Japan who create a mail-in repair for Power Mac G5 (Late 2005) computers eligible under the Power Mac G5 (Late 2005) REP for Power Supply Issues should select one of the following two CompTIA codes:.

Apple will charge service accounts for any parts ordered for repairs involving units eligible for the Power Mac G5 (Late 2005) REP that are not related to this program and are not covered by warranty or an extended AppleCare service agreement.  Service Source Basics Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc.

All rights reserved. Overview Power Mac G5 (Late 2005) is the third generation of Power Mac G5 computers. It leverages the G5 architecture with the following new features:.

G5 dual core processor (two processors on one chip): The Power Mac G5 (Late 2005 Dual 2.0 GHz/2.3 GHz) models use a single dual-core PowerPC G5 processor for dual processor. Differentiating the Power Mac G5 (Late 2005) While Power Mac G5 (Late 2005) computers look similar to earlier Power Mac G5 models, you can easily differentiate the Power Mac G5 (Late 2005) by checking the back panel.

Power Mac G5 (Late 2005) computers include two Gigabit Ethernet ports and three USB 2.0 ports, as illustrated below. Power cord: Because the power cord for the Power Mac G5 (Late 2005) is a special heavy-duty cord specific to this model, power cords from earlier Power Mac G5 models are not compatible. You can order the Power Mac G5 (Late 2005) power cord from GSX. For more information, refer to “Power Cord”. Power Mac G5 (Late 2005).

Processor screws: The mounting screws for the Power Mac G5 (Late 2005) processors must be removed and replaced in a different order from the screws on earlier Power Mac G5 processors. Refer to the Take Apart procedures for the.

Serial Number Location To identify a particular Power Mac G5 (Late 2005) computer, check the computer’s serial number, which lists the model’s configuration. The serial number is located directly below the air deflector inside the side access panel.

Power Mac G5 (Late 2005) Basics. Liquid Cooling System (LCS) The Power Mac G5 (Late 2005 Quad) configuration uses a liquid cooling system (LCS) to manage the temperature in the computer. The liquid cooling system is sealed and is designed to be opened only by an Apple Authorized Service Provider (AASP). To ensure proper safety and handling of the LCS system, please read the following information.

CURRENT INFORMATION. If professional advice is not available, do not induce vomiting. Contaminated individuals should drink milk, egg whites, or large quantities of water. Never induce vomiting or give diluents (milk or water) to someone who is unconscious, having convulsions, or unable to swallow. Power Mac G5 (Late 2005) Basics.

 Service Source Take Apart Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc. All rights reserved. For most take-apart procedures, it is recommended that you lay the computer on its side before removing or installing the part. For proper operation, however, Apple recommends that the unit be run in the upright position.

The computer should never be operated on its side with the access panel facing down. Power Cord The power cord for the Power Mac G5 (Late 2005) is a heavy-duty cord that is specific to this model. The Power Mac G5 (Late 2005) power cord accommodates the computer’s more powerful power supply. Power cords from earlier Power Mac G5 models are not compatible and will not fit the power cord socket on the back of the Power Mac G5 (Late 2005) computer. Warning: To avoid damaging its internal components or the components you want to install, always unplug the computer before attempting any take-apart procedure. Put on an ESD wrist strap.

Power Mac G5 (Late 2005) Take Apart — Opening the Computer. Replacement Note: Make sure the latch is in the up position before replacing the access panel. If the latch is down, the access panel will not seat correctly in the enclosure.

Power Mac G5 (Late 2005) Take Apart — Opening the Computer. Important: Make sure you re-install the air deflector before replacing the access panel. If the air deflector is not installed, the computer will not function properly. Power Mac G5 (Late 2005) Take Apart — Opening the Computer. Serial ATA Hard Drive 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 to the empty slot in the bay. Important: If the printed circuit board (PCB) is exposed on the bottom of the hard drive, hold the drive by its sides. To avoid damaging the replacement drive, take care not to touch the PCB during installation. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive.

When installing a bottom drive, align the guide screws with the bottom slot of the drive bay and slide the drive in until it snaps into place. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive. The only tool required for this procedure is a small wire cutter. Preliminary Steps Before you begin, open the computer and remove the hard drive(s). Part Location Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive Data Cable. Clip off the connector from the hard drive end of the upper hard drive data cable.

Disconnect the cable from the logic board, pull the cable out of the hard drive bay, and remove the cable from the enclosure. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive Data Cable.

Then install the upper hard drive with the cable routed below the drive, and connect the cable to the drive as illustrated. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive Data Cable.

Clip off the connector from the hard drive end of the lower hard drive cable. Disconnect the cable from the logic board, pull the cable out of the hard drive bay, and remove the cable from the enclosure. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive Data Cable. Then install the lower hard drive with the cable routed above the drive, and connect the cable to the drive as illustrated. Power Mac G5 (Late 2005) Take Apart — Serial ATA Hard Drive Data Cable.

Optical Drive Important: When installing a replacement optical drive, use the original Apple cables that came with the Power Mac G5. Tools No tools are required for this procedure. Preliminary Steps Before you begin, open the computer. Part Location Power Mac G5 (Late 2005) Take Apart — Optical Drive.

Disconnect the optical drive ribbon cable from the logic board. (The cable connector is located under the media shelf that holds the optical drive.) Push the optical drive levers out to release the drive. Power Mac G5 (Late 2005) Take Apart — Optical Drive. Disconnect the power cable from the drive. Route the drive ribbon cable out through the opening in the media shelf and remove the drive and ribbon cable from the computer.

Power Mac G5 (Late 2005) Take Apart — Optical Drive. Then bend down the free end of the ribbon cable, route it through the opening at the back of the media shelf, and connect the cable to the logic board. Power Mac G5 (Late 2005) Take Apart — Optical Drive. No tools are required for this procedure. Preliminary Steps Before you begin, open the computer and lay it on its side with the access side facing up. Part Location Power Mac G5 (Late 2005) Take Apart — Front Inlet Fan Assembly. Procedure Hold the front inlet fan assembly by the front handle and firmly pull it out of the computer.

Power Mac G5 (Late 2005) Take Apart — Front Inlet Fan Assembly. Important: Make sure the connector on the fan fully engages the fan connector on the logic board, or the computer will not operate properly. Gently pull the fan assembly to test whether it is connected. Power Mac G5 (Late 2005) Take Apart — Front Inlet Fan Assembly. The Power Mac G5 (Late 2005) has eight DIMM slots for PC2 4200, 533 MHz, Double-Data-Rate 2 (DDR2) SDRAM DIMMs. The slots are arranged in two banks of four slots each. Power Mac G5 (Late 2005) computers come with a minimum of 512 MB of RAM, installed as a pair of 256 MB DIMMs in the two center slots.

Note: Do not mix ECC and NECC memory modules within a pair. (See the “General Information” section of Troubleshooting for information on identifying ECC and NECC DIMMs.) Important: Memory from older Macintosh computers is not compatible with the Power Mac G5 (Late 2005).

Tools No tools are required for this procedure. Replacement Note: Align the DIMM in the slot and push both ends of the DIMM down until the tabs are vertical and the ejectors snap into place. Important: Do not touch the DIMM connectors. Handle the DIMM only by the edges. Power Mac G5 (Late 2005) Take Apart — Memory (DIMMs).

4, and a fourth in slot 2 to take advantage of the bus bandwidth of each slot. Before installing a card, check the specifications to make sure it can operate in the Power Mac G5 (Late 2005). Note: When certain high-end video cards are installed in slot 1, they block the adjacent PCI Express slot (slot 2). Do not rock the card from side to side and don’t force the card into the slot. Once the replacement card is installed, pull on it gently to check that it is properly connected. Power Mac G5 (Late 2005) Take Apart — Graphics Card/PCI Express Card.

Pull the card gently to see if it is properly connected. If it resists and stays in place, and if its gold connectors are barely visible, the card is connected. Power Mac G5 (Late 2005) Take Apart — Graphics Card/PCI Express Card. PCI card guide and the two screw holes in the card fence with the first two PCI card screw holes in the enclosure. Then press down.

Power Mac G5 (Late 2005) Take Apart — Graphics Card/PCI Express Card. Remove the two screws that mount the PCI card guide to the logic board. Slide the card guide up to release the two latches from the PCI divider, and remove the card guide from the enclosure. Power Mac G5 (Late 2005) Take Apart — Graphics Card/PCI Express Card.

Disconnect the Quadro FX 4500 cable from the logic board and remove the cable from the enclosure. Power Mac G5 (Late 2005) Take Apart — Graphics Card/PCI Express Card. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the front inlet fan assembly. If a memory DIMM is installed in the slot next to the battery, remove the DIMM. Part Location Power Mac G5 (Late 2005) Take Apart — Battery. Important: Batteries contain chemicals, some of which may be harmful to the environment. Please dispose of used batteries according to your local environmental laws and guidelines.

Power Mac G5 (Late 2005) Take Apart — Battery. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the front inlet fan assembly.

If a memory DIMM is installed in the slot next to the combo card, remove the DIMM. Part Location Power Mac G5 (Late 2005) Take Apart — AirPort Extreme/Bluetooth Combo Card. Disconnect the combo card from the runway card and lift up a short distance. Disconnect the two antenna cables from the card and remove the card from the enclosure. Replacement Note: The cables can attach to either connector on the card. Power Mac G5 (Late 2005) Take Apart — AirPort Extreme/Bluetooth Combo Card. Repeat for the second rivet.

Holding the runway card by its top edge, pull straight up to disconnect the card from the logic board. Power Mac G5 (Late 2005) Take Apart — AirPort Extreme/Bluetooth Combo Card. Preliminary Steps Before you begin, open the computer, lay it on its side with the access side facing up, and remove any 12-inch graphics or PCI Express cards. Part Location Power Mac G5 (Late 2005) Take Apart — PCI Card Guide. Remove the two screws that mount the PCI card guide to the logic board.

Slide the card guide up to release the two latches from the PCI divider, and remove the card guide from the enclosure. Power Mac G5 (Late 2005) Take Apart — PCI Card Guide. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:.

Any 12-inch graphics or PCI Express cards. PCI card guide. Part Location Power Mac G5 (Late 2005) Take Apart — Speaker/Fan Assembly. Replacement Note: When reinstalling the speaker/fan bracket in the enclosure, make sure the large tab on the side of bracket engages with the channel in the PCI divider.

Power Mac G5 (Late 2005) Take Apart — Speaker/Fan Assembly. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Any 12-inch graphics or PCI Express cards.

PCI card guide. Speaker/fan assembly Part Location Power Mac G5 (Late 2005) Take Apart — Ambient Board. Locate the ambient board connected to the logic board. Position your fingers on both sides of the board. Gently rock the board from side-to-side, pulling it straight up and out of the connector.

Power Mac G5 (Late 2005) Take Apart — Ambient Board. The only tool required for this procedure is a Xacto knife.

Preliminary Steps Before you begin, open the computer, lay it on its side with the access side facing up, and remove the front inlet fan assembly. Part Location Power Mac G5 (Late 2005) Take Apart — Heatsink Cover. Replacement Note: For Power Mac G5 (Late 2005 Dual) computers, you do not need to replace the rivet after you have replaced the heatsink cover. For Power Mac G5 (Late 2005 Quad), you must replace the rivet.

Extra rivets are available as part number 922-6503. Replacement Note: Place the notches in the underside of the cover directly over the four mounting pegs. Slide the cover toward the back of the computer and then press down firmly until you feel the cover lock into place.

Power Mac G5 (Late 2005) Take Apart — Heatsink Cover. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Front inlet fan assembly. All graphics and PCI Express cards.

Heatsink cover Part Location Power Mac G5 (Late 2005) Take Apart — Rear Exhaust Fan Assembly. Lift the fan bracket and fans out of the enclosure.

If you are replacing the fans on a Power Mac G5 (Late 2005 Quad) computer, use needlenose pliers to pull each fan off the four grommets that mount it to the bracket, and remove the fans and cable from the bracket. Then rotate the fan back flush with the rear panel, making sure the two latches on the top of the bracket engage with the two slots on the top of the fan guide.

Power Mac G5 (Late 2005) Take Apart — Rear Exhaust Fan Assembly. Replacement Note: Using a flatblade screwdriver, tuck the fan cable under the edge of the logic board.

Power Mac G5 (Late 2005) Take Apart — Rear Exhaust Fan Assembly. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Front inlet fan assembly. All graphics and PCI Express cards.

PCI card guide. Speaker/fan assembly. Heatsink cover Part Location Power Mac G5 (Late 2005) Take Apart — PCI Divider. Using a Xacto knife, pry up and remove the center of the first black rivet that mounts the runway card to the PCI divider. Pry up and remove the outer casing for the rivet. Repeat steps 1 and 2 for the second rivet. Power Mac G5 (Late 2005) Take Apart — PCI Divider.

Holding the runway card by its top edge, pull straight up to disconnect the card from the logic board. Set the runway card (with combo card attached) to the side. (There is no need to remove the runway card from the enclosure.) Power Mac G5 (Late 2005) Take Apart — PCI Divider. Replacement Note: Align the PCI divider on the logic board by placing it over the runway card connector.

Be sure to replace the processor heatsink cable in the clip on the PCI divider. Power Mac G5 (Late 2005) Take Apart — PCI Divider. Front inlet fan assembly. All graphics and PCI Express cards. PCI card guide. Speaker/fan assembly. Heatsink cover.

PCI divider Part Location Power Mac G5 (Late 2005) Take Apart — Media Bay Fan. Remove the two media bay fan mounting screws. Rotate the fan counterclockwise. Route the fan cable out through the opening in the media bay shelf and remove the fan from the media bay. Power Mac G5 (Late 2005) Take Apart — Media Bay Fan. Replacement Note: After placing the fan in the media bay, make sure the tabs on the bottom of the fan engage with the slots in the media bay shelf.

Then rotate the fan clockwise back into position. Power Mac G5 (Late 2005) Take Apart — Media Bay Fan. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:.

Front inlet fan assembly. Heatsink cover Part Location Power Mac G5 (Late 2005) Take Apart — Processor Inlet Frame (Dual 2.0/2.3 GHz). Replacement Note: If you are replacing the processor inlet frame with a new inlet frame on the Power Mac G5 (Late 2005 Dual 2.0 GHz/Dual 2.3 GHz) computer, check the replacement parts box for an enclosed label. Before installing the frame, apply the label to the frame as illustrated below. Front inlet fan assembly. All graphics and PCI Express cards.

Rear exhaust fan assembly. Heatsink cover. Processor inlet frame (Dual 2.0/2.3 GHz) Part Location Power Mac G5 (Late 2005) Take Apart — Processor (Dual 2.0/2.3 GHz). Insert a long-handled 4 mm ballhead hex driver into the two holes on the top of the heatsink and loosen (but do not remove) the two captive screws. Power Mac G5 (Late 2005) Take Apart — Processor (Dual 2.0/2.3 GHz). Holding the processor/heatsink by the bottom metal platform, lift the assembly straight up out of the enclosure. Warning: The heatsink and processor are one unit.

Do not attempt to separate the heatsink from the processor. Power Mac G5 (Late 2005) Take Apart — Processor (Dual 2.0/2.3 GHz). Gently rock the heatsink until it feels seated.

Warning: Don’t press on the top of the heatsink or you’ll damage the processor. Power Mac G5 (Late 2005) Take Apart — Processor (Dual 2.0/2.3 GHz). Insert a long-handled 4 mm ballhead hex driver into the two holes on the top of the heatsink and tighten the two captive screws. Using a long-handled 3 mm flathead hex driver, replace the two short screws that mount the power supply terminal. Power Mac G5 (Late 2005) Take Apart — Processor (Dual 2.0/2.3 GHz). Diagnostic (once the computer is reassembled).

Apple Service Diagnostic for Power Mac G5 (Late 2005) is available as a download from the Disc Images section of the Apple Service Source website. For more information, see “Thermal Calibration” in the Troubleshooting chapter. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Front inlet fan assembly. Heatsink cover Part Location Power Mac G5 (Late 2005) Take Apart — Processor Inlet Frame (Quad). Procedure Lift the processor inlet frame off the processor.

Remove the frame from the enclosure. Power Mac G5 (Late 2005) Take Apart — Processor Inlet Frame (Quad). Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Front inlet fan assembly. Heatsink cover.

Processor inlet frame (Quad) Part Location Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Procedure Remove the processor support bar cable from the clip on the PCI divider. Disconnect the processor support bar cable from the processor cable. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 3 mm flathead hex driver, loosen the four captive float plate screws.

(Do not remove the captive screws from their standoffs.) Using a 3 mm flathead hex driver, remove the six long processor mounting screws. Power Mac G5 (Late 2005) Take Apart — Processor (Quad).

Using a 3 mm flathead hex driver, remove the four short screws that mount the two processor terminal assemblies. Using a 4 mm ballhead hex driver, loosen the four captive screws near the middle of the processor. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Hold the heatsink by the middle and lift the processor/heatsink straight up out of the computer. Warning: The heatsink and processor are one unit. Do not attempt to separate the heatsink from the processor. Power Mac G5 (Late 2005) Take Apart — Processor (Quad).

Using a 3 mm flathead hex driver, loosen the four captive float plate screws. (Do not remove the captive screws from their standoffs.) Using a 3 mm flathead hex driver, remove the six long processor mounting screws. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 3 mm flathead hex driver, remove the four short screws that mount the two processor terminal assemblies. Using a 4 mm ballhead hex driver, loosen the four captive screws near the middle of the processor.

Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Hold the heatsink by the middle and lift the processor/heatsink straight up out of the computer. Warning: The heatsink and processor are one unit. Do not attempt to separate the heatsink from the processor.

Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Tilting the processor could damage the heatsink seal.

Before installing the processor, remove the caps over the processor connectors. Loosen the screws in the order marked below. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Press down on the middle (bridge) of the heatsink to make sure the processor is connected to the logic board. Gently rock the heatsink until it feels seated.

Warning: Don’t press on the end of the heatsink or you’ll damage the processor. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 4 mm ballhead hex driver, tighten the four captive screws near the middle of the processor.

Using a 3 mm flathead hex driver, replace the four short screws that mount the two processor terminal assemblies. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 3 mm flathead hex driver, replace the six long processor mounting screws.

Using a 3 mm flathead hex driver, tighten the four captive float plate screws. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Service Diagnostic (once the computer is reassembled). Apple Service Diagnostic for Power Mac G5 (Late 2005) is available as a download from the Disc Images section of the Apple Service Source website. For more information, see “Thermal Calibration” in the Troubleshooting chapter. Tilting the processor could damage the heatsink seal.

Before installing the processor, remove the caps over the processor connectors. Loosen the screws in the order marked below. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Press down on the middle (bridge) of the heatsink to make sure the processor is connected to the logic board. Gently rock the heatsink until it feels seated. Warning: Don’t press on the end of the heatsink or you’ll damage the processor.

Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 4 mm ballhead hex driver, tighten the four captive screws near the middle of the processor. Using a 3 mm flathead hex driver, replace the four short screws that mount the two processor terminal assemblies. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Using a 3 mm flathead hex driver, replace the six long processor mounting screws.

Using a 3 mm flathead hex driver, tighten the four captive float plate screws. Power Mac G5 (Late 2005) Take Apart — Processor (Quad). Diagnostic (once the computer is reassembled). Apple Service Diagnostic for Power Mac G5 (Late 2005) is available as a download from the Disc Images section of the Apple Service Source website. For more information, see “Thermal Calibration” in the Troubleshooting chapter. Processor Support Bar and Cable Note: The illustrations in this procedure are based on the Power Mac G5 (Late 2005 Quad) computer.

Although the Power Mac G5 (Late 2005 Dual) support bar cable differs from the Quad cable (it has two connectors rather than three), the take-apart procedure for all configurations is primarily the same. Remove the two mounting screws from the processor support bar. Disconnect the processor support bar cable from the logic board. Power Mac G5 (Late 2005 Quad): If necessary, remove the processor support bar cable from the clip on the PCI divider. Depress the two clips on either side of the front inlet fan connector and remove the connector from the support bar.

Unclip the cable from the support bar and remove the cable from the bar. Power Mac G5 Take Apart (Late 2005) — Processor Support Bar and Cable. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:. Front inlet fan assembly. Any memory DIMMs installed next to the front panel board Part Location Power Mac G5 (Late 2005) Take Apart — Front Panel Board. Gently pull the board back from the front panel, tip the back of the board up so that it clears the DIMM slot ejectors, and remove the board from the enclosure.

Power Mac G5 (Late 2005) Take Apart — Front Panel Board. Replacement Note: When replacing the front panel board, align the ports on the board with the openings in the front panel board. Then press the board firmly to the enclosure. Power Mac G5 (Late 2005) Take Apart — Front Panel Board. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following:.

Front inlet fan assembly. Any memory DIMMs installed next to the front panel board. Front panel board Part Location Power Mac G5 (Late 2005) Take Apart — Power Button. Remove the black rubber cap that covers the power button LED. Using a jeweler’s flat-blade screwdriver, pry up the metal C-ring that secures the power button board. Lift up and remove the power button board.

Power Mac G5 (Late 2005) Take Apart — Power Button. Remove the metal activation ring that lies below the power button board. Remove the power button from the enclosure. Power Mac G5 (Late 2005) Take Apart — Power Button. All graphics and PCI Express cards. AirPort Extreme/Bluetooth combo card and runway card. Rear exhaust fan assembly.

PCI card guide. Speaker/fan assembly.

Front panel board. PCI divider Power Mac G5 (Late 2005) Take Apart — Logic Board. Part Location Power Mac G5 (Late 2005) Take Apart — Logic Board. Procedure Disconnect the cables from the top and bottom edge of the logic board.

Using a long-handled T-10 torx driver, remove the nine power supply bus bar screws. Power Mac G5 (Late 2005) Take Apart — Logic Board. Tilt the logic board up and maneuver it out of the enclosure, making sure the ports clear the enclosure openings. Power Mac G5 (Late 2005) Take Apart — Logic Board.

Important: Before you install a replacement logic board, remove the protective clips and caps circled in the illustration below and transfer them to the logic board you are returning to Apple. Do not remove the mylar sheet from the board. Slide the board toward the rear of the computer so that the logic board locks onto the mushroom-head standoffs and the ports are fully seated in the back panel openings. Power Mac G5 (Late 2005) Take Apart — Logic Board. In either case, make sure the rear standoffs are threaded through the power terminal rings before you insert the standoffs into the logic board. Power Mac G5 (Late 2005) Take Apart — Logic Board. Service Diagnostic (once the computer is reassembled).

Apple Service Diagnostic for Power Mac G5 is available as a download from the Disc Images section of the Apple Service Source website. For more information, see “Thermal Calibration” in the Troubleshooting chapter. AirPort Extreme/Bluetooth combo card and runway card. Rear exhaust fan assembly.

PCI card guide. Speaker/fan assembly.

Front panel board. PCI divider. Logic board Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables.

Part Location Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables. Remove the three screws on the interior antenna board cover. Note: This procedure will also release the exterior antenna board cover on the back panel. Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables. Using a flatblade screwdriver, pry up the interior antenna board cover and remove the cover from the enclosure. Remove the antenna board from the slot in the exterior antenna board cover.

Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables. Replacement Note: Insert the antenna board into the slot in the exterior antenna board cover as illustrated. Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables. Replacement Note: Be sure to reroute the antenna cables in the channel between the PCI cage and the rear exhaust openings on the inside of the enclosure’s back panel. Power Mac G5 (Late 2005) Take Apart — Antenna Board and Cables. AirPort Extreme/Bluetooth combo card and runway card. Rear exhaust fan assembly.

PCI card guide. Speaker/fan assembly.

Front panel board. PCI divider.

Logic board Power Mac G5 (Late 2005) Take Apart — Power Supply. Part Location Power Mac G5 (Late 2005) Take Apart — Power Supply. Note: On some power supply covers, a pad attached to the top of the cover hides the left screw.

To access this screw, gently peel back the pad as illustrated. Using a 1/4 inch nut driver, remove the mushroom-head standoff closest to the power supply. Power Mac G5 (Late 2005) Take Apart — Power Supply. Using the Phillips screwdriver, remove the four power supply mounting screws on the bottom of the enclosure. Lift up the bus bar tabs to release them from the plastic runner on the enclosure.

Power Mac G5 (Late 2005) Take Apart — Power Supply. Rotate the power supply up and remove it from the enclosure. Replacement Note: Make sure the plastic trim ring is in place in the power receptacle before replacing the power supply in the enclosure. Power Mac G5 (Late 2005) Take Apart — Power Supply. Note: Make sure the power supply cables do not catch on the enclosure or under the power supply. Replacement Note: Be sure to replace the mushroom-head standoff after installing the power supply in the enclosure. Power Mac G5 (Late 2005) Take Apart — Power Supply.

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AirPort Extreme/Bluetooth combo card and runway card. Rear exhaust fan assembly. PCI card guide. Speaker/fan assembly.

Front panel board. PCI divider. Logic board. Power supply Power Mac G5 (Late 2005) Take Apart — Air Deflector Sensor Board. Part Location Power Mac G5 (Late 2005) Take Apart — Air Deflector Sensor Board. Pry up the sensor board from the frame and remove the board from the enclosure. Note: Adhesive on the back of the board attaches the sensor board to the frame.

Power Mac G5 (Late 2005) Take Apart — Air Deflector Sensor Board.  Service Source Troubleshooting Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc. All rights reserved. The Power Mac G5 (Late 2005) has eight DIMM slots for PC2 4200, 533 MHz, Double-Data-Rate 2 (DDR2) SDRAM DIMMs. The slots are arranged in two banks of four slots each. Power Mac G5 (Late 2005) computers come with a minimum of 512 MB of RAM, installed as a pair of 256 MB DIMMs in the two center slots.

In the Power Mac G5 (Late 2005), DIMMs must fit the following specifications. Memory from older Macintosh computers is not compatible. PC2 4200, 533 MHz, DDR2 DIMMs. 240-pin module. Maximum number of memory devices on DDR2 SDRAM: 18.

16 lane Thermal Calibration To ensure proper fan and temperature control in the Power Mac G5 (Late 2005), you must run Apple Service Diagnostic whenever you replace a processor or logic board with a new processor or logic board. Apple Service Diagnostic for Power Mac G5 is available as a download from www.info.apple.com/discimages/. Diagnostic LEDs Power Mac G5 (Late 2005) logic boards include a set of LEDs to help service providers troubleshoot the computers.

The LEDs are located to the left of the top bank of DIMM slots. Notes for LED Table. Power Mac G5 (Late 2005 Dual 2.0/2.3 GHz) logic boards include LEDs 1–5 and LED 7, but not LED 6. Power Mac G5 (Late 2005 Quad) logic boards include LEDs 1–7. CPU A is located closest to the PCI Express slots; CPU B is located below CPU A (closer to the power supply). LED 3 should be on and red, indicating that the main power is OK and within regulation. Voltage Measurements Note: Due to the size and location of the Power Mac G5 (Late 2005 Quad) processor module, it isn’t possible to get access to the power bus bar screws to check the voltages.

The following procedure can be used only for Power Mac G5 (Late 2005 Dual 2.0/2.3 GHz) computers. Tab 9 Tab 4 Nominal +3.3 VDC 3. 1 4 VDC 3.48 VDC +5. 1 VDC 4.85 VDC 5.35 VDC +12 VDC 11.4 VDC 12.60 VDC +12 VDC 11.4 VDC 12.60 VDC Power Mac G5 (Late 2005) Troubleshooting — General Information. +12 VDC 10.8 VDC 13.2 VDC CPU Terminals CPU B Voltage Positive Lead Ground Lead 12 V Terminal 1 Terminal 2 Terminal 2 Tab 4 Nominal +12 VDC 10.8 VDC 13.2 VDC Power Mac G5 (Late 2005) Troubleshooting — General Information. Board” in this chapter.

Verify power supply cables are fully connected and power bus bar screws are tightened. Verify that processors are properly seated. Check diagnostic LED 1 and/or LED 6. Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts.

Reseat processor and check for bent pins. Check for trickle voltage from the power supply. Refer to “Power Supply Verification” in this chapter. If verification fails, replace power supply.

Replace logic board. Replace processor. Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts. Power-on LED illuminates, fans spin up, no boot tone, and the system shuts down within a few minutes Check diagnostic LED 1 and LED 6. Reseat the processor and check for bent pins Replace the processor Replace the logic board Replace the power supply Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts. Wipe the spill using rags, paper towels, or other suitable material. Contain and dispose of the cleaning materials according to locals laws and regulations.

Wash the skin with running water Replace the processor Replace modules that show corrosion to the traces or solder joints. Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts. Check that the fans are operating. If the system log still reports Thermal Runaway, run Apple Service Diagnostic (refer to “Thermal Calibration” earlier in this chapter). Check speaker cable connection Replace speaker/fan assembly Replace logic board USB 2.0 (front port) Reseat front panel board Replace front panel board Replace logic board USB 2.0 (rear ports) Replace logic board Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts. Audio IO (front headphones) Reseat front panel board Replace front panel board Replace logic board Audio IO (rear audio line in; rear audio line out) Check Sound settings in System Preferences Replace logic board Power Mac G5 (Late 2005) Troubleshooting — Symptom Charts.

 Service Source Upgrades Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc. All rights reserved. Before you begin, open the computer, lay it on its side with the access side facing up, and remove the front inlet fan assembly. If a memory DIMM is installed in the slot next to the combo card connector, remove the DIMM. Part Location Power Mac G5 (Late 2005) Upgrades — AirPort Extreme/Bluetooth Combo Card. Secure the runway card to the PCI divider by inserting the outer casings for the two black mounting rivets into the two holes at the top corners of the card.

Then insert the center plugs for the rivets. Power Mac G5 (Late 2005) Upgrades — AirPort Extreme/Bluetooth Combo Card.

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Using a jeweler’s Phillips screwdriver, install the two combo card mounting screws. Connect the combo card antenna cables to the clip on the side of the PCI divider. Replace any DIMMs you removed earlier. Replace the front inlet fan assembly. Power Mac G5 (Late 2005) Upgrades — AirPort Extreme/Bluetooth Combo Card.  Service Source Views Power Mac G5 (Late 2005) © 2005 Apple Computer, Inc.

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All rights reserved. Rear I/O 922-7026 Shield 922-6950 922-7088 Ambient Board 922-7028 Dual Logic Board 661-3725 Enclosure Quad Logic 922-6783 Board 661-3726 Combo Card 661-3692 Dual Support Support Bar Bar Cable 922-6940 922-7125 Quad Support Bar Cable 922-7126 Power Mac G5 (Late 2005) Views. 500 GB 661-3735 Dual 2.0/2.3 Rear Exhaust Fan Speaker/ 922-7086 Quad Rear Exhaust 922-7027 Fan 076-1047 and 922-6033 Front Inlet Fan 922-7085 Power Supply 710 W 661-3737 1 KW 661-3738 Front Panel Board 922-7030 Power Mac G5 (Late 2005) Views.

Screw Matrix Screw Matrix 922-2739 922-5846 922-5972 922-5974 922-6024 922-6035 922-6169 922-6252 922-6253 922-6305 922-6306 922-6532 Screw Matrix Power Mac G5 Views - 3 Power Mac G5 (Late 2005) Views. Screw Matrix 922-6939 922-6946 922-6947 922-6949 922-7089 922-7107 922-7124 922-7133 922-7134 Screw Matrix Power Mac G5 Views - 3 Power Mac G5 (Late 2005) Views. Internal Views Overview Top Hard Optical Drive Bay Drive Bottom Hard Drive Bay DDR2 SDRAM Slots Slots 2–4: PCI Express Battery Slot 1: PCI Express Graphics (graphics card installed) Power Mac G5 (Late 2005) Views.

Reset Button Connector Power Supply Processor Support Bar Connector Cable Connector Battery Graphics Card Cable Connector Diagnostic LEDs Front Panel Drive Power Board Connector Cable Connector Ambient Runway Card DIMM Slots Board Connector Connector Power Mac G5 (Late 2005) Views. External Views Front View Optical Drive Status Light Headphone Jack ® Power Button FireWire 400 Port USB 2.0 Port Power Mac G5 (Late 2005) Views. Gigabit Ethernet and AirPort Ports (2) Antenna FireWire 800 Optical Digital Port Audio Out Port FireWire 400 Optical Digital Port Audio In Port Audio Line-Out Port USB 2.0 Ports (3) Audio Power Socket Line-In Port Power Mac G5 (Late 2005) Views.