Apple macpro-8x Service Manual
Service Source
Mac Pro (8x)
5 April 2007
© 2007 Apple Inc. All rights reserved.
Mac Pro (8x)
Contents
Basics
Overview 6
Identifying the Mac Pro (8x)
Serial Number Location 7
GSX Parts 8
7
Special Handling Instructions 9
Handling Instructions 9
Safety and First Aid Guidelines 10
Disposal Instructions 11
Take Apart
General Information 13
Orientation 13
Tools 13
Dierences Between the Original Mac Pro and Mac Pro (8x) 13
Opening the Computer 15
Hard Drives 17
Optical Drive Carrier and Optical Drives 20
Memory (FB-DIMMs) and Memory Riser Cards 24
PCI Express/Graphics Card 2
Power Supply 33
Power Supply Fan 37
AirPort Extreme Card 4
2
Bluetooth Card 45
Battery 47
Processor Heatsink Cover 49
8
ii
Front Fan Assembly 52
Memory Cage with Rear Fan 57
Processor Heatsinks 62
Processors 71
Speaker Assembly 76
USB Cable 79
Logic Board 81
Front Panel Board 89
Power Button 93
AirPort Antenna Board with Cables 97
Optical Drive Power Cable 101
Optical Drive Data (Ribbon) Cable 104
Ambient Board 106
Ambient Board Cable 108
Bluetooth Antenna Board and Cable 110
Hard Drive Cable Harness 113
Hard Drive Temperature Sensor Cable 115
Hard Drive Temperature Sensor 117
Power Cable Harness 120
Troubleshooting
General Information 126
Memory 126
PCI Express Cards 127
Internal Cabling Matrix 127
Thermal Calibration 129
Resetting the Logic Board 130
Power-On Self Test: RAM and Processor Verication 131
Diagnostic LEDs 132
Power Supply Verication 137
Mac Pro Firmware Updates 137
Processor Heatsink and Processor Visual Inspection Instructions 139
iii
Symptom Charts 142
How to Use the Symptom Charts 142
Startup Failures 142
Fans 145
AirPort Extreme Card 146
Bluetooth Card 147
Other Failures 147
Upgrades
AirPort Extreme Card 151
Bluetooth Card 154
PCI Express/Graphics Card 156
Views
Exploded View 161
External Views 163
Screw Matrix 165
iv
Service Source
Basics
Mac Pro (8x)
© 2007 Apple Inc. All rights reserved.
Overview
The Mac Pro (8x) is the high-end conguration of the original Mac Pro and shares the same form
factor. However, the Mac Pro (8x) conguration features two quad-core Intel Xeon processors,
eectively making it an 8x-processor computer.
Mac Pro (8x) Basics 6
Identifying the Mac Pro (8x)
To identify a Mac Pro (8x) computer, check the computer’s conguration label, which is located
on the computer’s back panel directly below the video ports. Two numbers on the conguration
label identify the computer as a Mac Pro (8x):
On the rst line of the label, the EMC number is listed as “2138”
•
On the second line, the conguration description includes “3.0_8cx”
•
Serial Number Location
The Mac Pro (8x) serial number is located on the conguration label, directly below the
conguration description.
Mac Pro (8x) Basics 7
GSX Parts
Because Mac Pro (8x) is a product conguration of the original Mac Pro, Mac Pro (8x) computers
do not have serial numbers distinct from Mac Pro serial numbers. There is also no separate Mac
Pro (8x) product pull-down list in GSX.
When using a computer’s serial number to look up Mac Pro (8x) parts in GSX, be aware that you
will receive a list of parts for both Mac Pro and Mac Pro (8x). Parts that are unique to Mac Pro (8x)
will have “8x” included at the end of the part description. Parts without “8x” in the description
may be either a) parts unique to the original Mac Pro or b) parts used in both the original Mac
Pro and Mac Pro (8x). To verify that a particular part is used in the Mac Pro (8x), check the GSX
“Notes” eld for the part or the “Exploded View” diagrams in the Views chapter.
Mac Pro (8x) Basics 8
Special Handling Instructions
The Mac Pro (8x) conguration uses a special coating on the processor heatsink and processor
to manage the temperature in the computer. To ensure proper handling and disposal of this
material, please read the following information.
Handling Instructions
Use these guidelines when handling the Mac Pro (8x) processor heatsink and processor:
General
•
Wear disposable nitrile or latex gloves when handling the processor heatsink and processor.
•
Avoid touching the silver coating on the underside of the heatsink and the top of the
processor.
•
Use care when removing the heatsink from the computer. As much as possible, lift the
heatsink straight up o the processor.
•
Use care when removing the processor from the logic board. Lift the processor out of the
processor holder by inserting a nger or atblade screwdriver in the notch at the front of the
holder. Hold the processor only by the edges.
•
When installing a replacement heatsink or processor, remove the protective cover from
the new heatsink or processor and transfer it to the defective heatsink or processor before
packaging it for return to Apple.
Timing
•
When removing or replacing the heatsink and/or processor, do not allow the heatsink to be
separated from the processor for more than 15 minutes. The silver coating on the heatsink
and processor degrades with exposure to air; more than 15 minutes exposure could result
in damage to the computer and a repeat, multi-part repair. Reassemble the computer while
waiting for any new parts to arrive.
•
When installing a new logic board, use care in transferring the heatsinks and processors to
the new board. Do not allow the heatsinks and processors to be separated from the board
or from each other for more than 15 minutes. Reassemble the computer while waiting for a
new logic board to arrive.
Visual Inspection
•
Always make a visual inspection of a new processor or heatsink before installing it in the
computer.
•
Always make a visual inspection of both existing processors and heatsinks before
transferring them to a new logic board.
•
See “Processor Heatsink and Processor Visual Inspection Instructions” in the
Troubleshooting chapter for more information.
Mac Pro (8x) Basics 9
Krytox Thermal Grease
To ensure a proper seal between the heatsink and processor, a bead of Krytox grease rims
•
the gasket on the underside of the heatsink. Replacement heatsinks come with the grease
already applied.
Use the following guidelines for when to reapply Krytox grease to the heatsink. (Refer to
•
“Processor Heatsinks” in the Take Apart chapter for detailed instructions on how to apply or
clean o the grease.)
In most cases, you do not need to reapply Krytox grease when installing a new
-
processor or when transferring processors and heatsinks to a replacement logic board.
If you are installing a new heatsink , remove any residual grease from the outer edges
-
of the processor. Do not apply new grease to the heatsink or processor, as the heatsink
comes with the full capacity of grease applied.
For more detailed information, refer to “Processor Heatsinks” and “Processors” in the Take Apart
chapter.
Safety and First Aid Guidelines
Below is a summary of safety and rst aid measures for exposure to the coating on the processor
heatsink and processor or the Krytox grease used in sealing the processor heatsink to the
processor. For complete instructions, refer to the specic Material Safety Data Sheets (MSDS)
included with the replacement parts.
Safety
Avoid contact with eyes.
Avoid contact with skin.
Wash thoroughly after handling.
Do not store or consume food, drink, or tobacco in areas where they may become
contaminated with the material.
First Aid
Eyes: Immediately ush with plenty of water. If wearing contact lenses, after initial ushing,
remove contact lenses and continue to ush for 15 minutes. Have eyes examined by a
medical professional if irritation persists.
Skin: Wash skin with soap and running water. The recommended ushing is 15 minutes if
pain or irritation occurs. Remove and wash contaminated clothing. Seek medical attention if
irritation or redness develops.
Inhalation: Remove to fresh air. If not breathing, give articial respiration. If breathing is
dicult, give oxygen. Call a physician.
Ingestion: Do not induce vomiting. Contaminated individual should immediately be given
two glasses of water. Never give anything by mouth to someone who is unconscious, having
convulsions, or unable to swallow. Call a physician.
Mac Pro (8x) Basics 10
Disposal Instructions
Place all disposable materials used in removing or replacing a processor heatsink or processor
inside the resealable plastic bag included with the replacement module. (Disposable materials
include such items as protective gloves, alcohol wipes, lint-free cleaning cloths, Krytox grease
and syringe, and heatsink gasket.) Pack this bag along with the failed module in the box that the
replacement module came in, and return the box to Apple.
Mac Pro (8x) Basics 11
Service Source
Take Apart
Mac Pro (8x)
© 2007 Apple Inc. All rights reserved.
General Information
Orientation
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.
Tools
The following tools are required to service all congurations of the computer:
Long-handled magnetized Phillips #1 screwdriver
•
Long-handled magnetized 3 mm athead hex screwdriver
•
Magnetized 2.5 mm hex wrench
•
Flat-blade screwdriver
•
Magnetized jewelers Phillips #1 screwdriver
•
Magnetized jeweler’s Phillips #0 screwdriver
•
Jeweler’s at-blade screwdriver
•
Needlenose pliers
•
Scissors or wire cutters
•
Xacto knife
•
Nylon probe tool (black stick)
•
Tape (for temporarily holding cables out of the way)
•
Small mirror (for seeing small boards inside the enclosure)
•
Soft cloth (for protecting the enclosure from scratches)
•
Differences Between the Original Mac Pro and Mac Pro (8x)
The following are dierences in the take-apart procedures for the Mac Pro (8x), as compared with
earlier Mac Pro congurations. (For detailed information, be sure to refer to the full procedure for
each part.)
Power Supply
The power supply cables are located under a cover at the back wall of the optical drive bay. This
change simplies access to the cable connectors and makes removal of the power supply easier.
Mac Pro (8x) Take Apart — General Information 13
Power Supply Fan
Fully removing the power supply is a preliminary step for removing the power supply fan. The
simplied procedure for removing the power supply therefore simplies removal of the power
supply fan.
Processor Heatsink Cover
When removing the heatsink cover, you no longer have to make room by removing the memory
cage screws and sliding the memory cage toward the back of the computer. The heatsink cover is
held in place with tabs and magnets and comes o easily without any tools.
Front Fan Assembly
The front fan assembly is held in place by two screws: one at the top rear of the assembly that
mounts the assembly to the logic board and a new screw at the bottom front of the assembly.
Once these screws are removed, the front fan assembly can easily be lifted out of the enclosure.
Memory Cage with Rear Fan
The only parts that must be removed before removing the memory cage are the top and bottom
memory cards, any PCI Express card installed in slot 1, and the processor heatsink cover. The rear
fan collapses into the cage, which simplies removal of the cage and fan. In addition, the rear fan
can be removed from the memory cage and is therefore a separate, orderable part.
Processor Heatsinks and Processors
A special coating that helps manage the temperature of the computer comes applied to the
underside of the heatsink and the top of the processor. As a result, several new guidelines are
necessary for handling the heatsink and processor.
Logic Board
Eleven screws secure the logic board to the enclosure. Previous Mac Pro congurations used
eight screws.
Bluetooth Antenna Board and Cable
Because the Bluetooth antenna board cable runs under the logic board, you must remove the
logic board before removing the antenna board and cable.
Parts Requiring Enclosure Replacement
The following are not separate, orderable parts. To replace them, you must replace the enclosure.
Media shelf
•
Rear panel latch
•
Mac Pro (8x) Take Apart — General Information 14
Opening the Computer
Tools
No tools are required for this procedure.
Preliminary Steps
1.
Shut down the computer.
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 from the computer except the power cord.
4.
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 nished working and closed the computer.
5.
Unplug the power cord.
Warning: To avoid damaging its internal components or the components you want to
install, always unplug the computer before attempting any take-apart procedure.
6.
Put on an ESD wrist strap.
Mac Pro (8x) — Opening the Computer 15
Procedure
Hold the side access panel and lift the latch on the back of the computer.
1.
Warning: The edges of the access panel and the enclosure can be sharp. Be very careful
when handling them.
Remove the access panel and place it on a at surface covered by a soft, clean cloth.
2.
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.
Mac Pro (8x) — Opening the Computer 16
Hard Drives
The Mac Pro (8x) computer can accommodate four serial ATA (SATA) 3 Gbps hard drives in its four
internal hard drive bays. In most congurations, a single hard drive occupies the far left bay
(bay 1).
The hard drives must meet the following specications:
Type: SATA 3 Gbps
•
Width: 3.9 inches (102 mm)
•
Depth: 5.7 inches (147 mm)
•
Height: 1.0 inch
•
Tools
The only tool required for this procedure is a Phillips #1 screwdriver.
Preliminary Steps
Before you begin, open the computer, and lay it on its side with the access side facing up.
Important: Make sure the latch on the back panel is in the up position. When the latch is down,
the hard drives and carriers are locked in place and you will not be able to remove them.
Mac Pro (8x) Take Apart — Hard Drives 17
Part Location
Procedure
Make sure the latch on the back panel is up, so that the drives and carriers are unlocked.
1.
Pull the hard drive out of the drive bay.
2.
Mac Pro (8x) Take Apart — Hard Drives 18
3.
If you are replacing the hard drive with a new drive, remove the four screws that mount the
drive to the carrier and mount the new drive in the carrier.
Important: Hold the drive by its sides. Be careful not to touch the printed circuit board on
the bottom of the drive.
Replacement Note: Slide the carrier and drive over the guides and into the drive bay, until you
feel the drive snap into place.
Note: If you install a new (replacement) drive, format it by following these steps:
1.
Open Disk Utility and select the drive in the list to the left.
Note: If you are formatting the primary drive, use the Disk Utility program on the Install Disk.
2.
Click on the Partition tab.
3.
Click on “Options” and verify GUID is selected if this is a bootable drive.
4.
Apply the change by clicking on the “Partition” button.
Mac Pro (8x) Take Apart — Hard Drives 19
Optical Drive Carrier and Optical Drives
The Mac Pro (8x) computer can accommodate two optical drives in the optical drive bay. If the
computer has only one optical drive, it is installed in the top position.
Note: To eject the drives, use the following:
Top drive: Press the Eject key.
•
Bottom drive: Press the Option and Eject keys.
•
Tools
The only tool required for this procedure is a Phillips #1 screwdriver.
Preliminary Steps
Before you begin, open the computer, and lay it on its side with the access side facing up.
Important: Make sure the latch on the back panel is in the up position. When the latch is down,
the optical drives and carrier are locked in place and you will not be able to remove them.
Part Location
Mac Pro (8x) Take Apart — Optical Drive Carrier and Optical Drives 20
Procedure
Removing the Optical Drive Carrier and Optical Drives
Make sure the latch on the back panel is up, so that the drives and carriers are unlocked.
1.
Pull the optical drive carrier part way out of the computer.
2.
Mac Pro (8x) Take Apart — Optical Drive Carrier and Optical Drives 21
Disconnect the power and ribbon cables from the optical drive(s) and remove the carrier.
3.
If you are replacing the optical drive with a new optical drive, do the following:
4.
Remove the four mounting screws and remove the optical drive from the carrier.
•
Use the four screws to mount the replacement drive in the carrier.
•
Note: If you are adding a second drive to the carrier, use the four screws stored on the back of
the drive carrier to secure the drive to the carrier.
Mac Pro (8x) Take Apart — Optical Drive Carrier and Optical Drives 22
Replacing the Optical Drive Carrier and Optical Drives
Important: Use the original Apple cables that came with the computer when you install or
replace the optical drives. If just one optical drive is installed, tuck the cables for the second drive
out of the way.
Attach the power and ribbon cables to the back of the drive(s).
1.
Important: Attach the connector on the end of the optical drive ribbon cable and the
connector in the middle of the optical drive power cable to the top drive. If there is a second
drive in the carrier, attach the remaining optical drive ribbon and power connectors to the
bottom drive.
Slide the optical drive carrier over the guides and into place in the optical drive bay.
2.
Mac Pro (8x) Take Apart — Optical Drive Carrier and Optical Drives 23
Memory (FB-DIMMs) and Memory Riser Cards
The Mac Pro (8x) computer has two memory riser cards with a total of 8 memory slots. On each
card, the slots are arranged as two banks of two slots each. The computer comes with a minimum
of 1 GB of memory, installed as a pair of 512 MB fully buered, dual inline memory modules (FBDIMMs) in two of the DIMM slots. Additional DIMMs can be installed in the open DIMM slots, as
illustrated below.
Note: DIMMs must be installed in pairs of equal size from the same vendor. In the illustration
below, DIMMs in one colored pair do not need to match DIMMs in a dierent colored pair.
Mac Pro (8x) Take Apart — Memory (DIMMs) and Memory Riser Cards 24
DIMMs for Mac Pro (8x) must t these specications:
•
667 MHz, FB-DIMMs
•
72-bit wide, 240-pin modules
•
36 devices maximum per DIMM
•
Error-correcting code (ECC)
Memory from older Macintosh computers is not compatible with Mac Pro (8x).
Important: For proper operation of Mac Pro (8x) computers, Apple recommends using only
Apple-approved Mac Pro (8x) FB-DIMMs. Refer to GSX for Apple FB-DIMMs service part numbers.
Tools
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.
Warning: Always wait 5–10 minutes for the computer to cool down before you remove or install
memory. The DIMMs may be very hot.
Part Location
Mac Pro (8x) Take Apart — Memory (DIMMs) and Memory Riser Cards 25
Procedure
Holding the memory riser card by the two nger holes, pull it out of the memory cage and
1.
place the card DIMM side up on a soft, clean cloth.
Open the ejectors on the DIMM slot by pushing them out to the sides, and remove the
2.
DIMM from the riser card.
Mac Pro (8x) Take Apart — Memory (DIMMs) and Memory Riser Cards 26
Replacement Note: Align the DIMM in the slot on the riser card and push both ends of the
DIMM down until the ejectors snap back up into place.
Warning: FB-DIMMs carry heatsinks on either side of the DIMM. Never attempt to remove the
heatsinks from the DIMMs. Doing so could damage the DIMM.
Mac Pro (8x) Take Apart — Memory (DIMMs) and Memory Riser Cards 27
PCI Express/Graphics Card
Slot 1: Double-wide
PCI Express graphics
(graphics card installed)
Slots 2–4: PCI Express
The Mac Pro (8x) logic board includes one double-wide PCI Express graphics slot and three
PCI Express expansion slots, for a total of four slots. The computer comes with a graphics card
installed in slot 1. You can install additional PCI Express graphics and expansion cards in the
remaining three PCI Express expansion slots.
Important: Graphics cards from previous Power Mac G5 models are not compatible with Mac
Pro (8x) models. In addition, Mac Pro (8x) graphics cards are not compatible with previous
models.
Important: Combined maximum power consumption for all four PCI Express slots must not
exceed 300 W.
Tools
The only tool required for this procedure is a Phillips #1 screwdriver.
Preliminary Steps
Before you begin, open the computer, and lay it on its side with the access side facing up.
Note: You may also nd it helpful to remove the hard drives and carriers and any adjacent PCI
Express cards before beginning this procedure.
Mac Pro (8x) Take Apart — PCI Express/Graphics Card 28
Part Location
Procedure
This procedure explains how to remove a standard card and a card that includes a booster cable.
Before you can remove either type of card, however, you must rst loosen the two captive screws
that secure the PCI bracket to the enclosure and remove the bracket.
Mac Pro (8x) Take Apart — PCI Express/Graphics Card 29
Warning: When removing or installing a card, handle it only by the edges. Do not touch its
connectors or any of the components on the card. Lift the card straight out from the connector
to remove it, and insert it straight into the connector to install it. 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.
Standard Card
Release the small locking clip at the front of the card’s logic board connector by pushing the
1.
clip up toward the media shelf.
Holding the card by the top corners, pull up the card and remove it from its expansion slot.
2.
Replacement Note: Align the card’s connector with the expansion slot and press until the
connector is inserted all the way into the slot. If you’re installing a 12-inch card, make sure the
card engages the appropriate slot in the PCI card guide.
Don’t rock the card from side to side; instead, press the card straight into the slot.
•
Don’t force the card. If you meet a lot of resistance, pull the card out. Check the connector
•
and the slot for damage or obstructions, then try inserting the card again.
Pull the card gently to see if it is properly connected. If it resists and stays in place and its
•
gold connectors are barely visible, the card is connected.
Mac Pro (8x) Take Apart — PCI Express/Graphics Card 30
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