Apple mac pro 8x User Manual

							© 2007 Apple Inc. All rights reserved.
 Service Source
Mac Pro (8x)
Updated: 4 March 2008 
						

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 Apple Inc.
© 2007 Apple Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the 
written consent of Apple.
Every effort has been made to ensure that the information in this document is accurate. Apple is 
not responsible for printing or clerical errors.
Apple 
1 Infinite Loop 
Cupertino, CA 95014-2084 
USA 
+ 1 408 996 1010 
www.apple.com
Apple, the Apple logo, and Mac Pro are trademarks of Apple Inc., registered in the U.S. and other 
countries.  
						

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Mac Pro (8x)
Contents
Basics
Overview 7
Identifying the Mac Pro (8x) 8
Serial Number Location 8
GSX Parts 9
Special Handling Instructions 10
Handling Instructions 10
Safety and First Aid Guidelines  11
Disposal Instructions 12
Take Apart
General Information 14
Orientation 14
Tools 14
Differences Between the Original Mac Pro and Mac Pro (8x)   14
Opening the Computer 16
Hard Drives  18
Optical Drive Carrier and Optical Drives   21
Memory (FB-DIMMs) and Memory Riser Cards  25
PCI Express/Graphics Card 29
Power Supply 34
Power Supply Fan  38
AirPort Extreme Card  43
Bluetooth Card  46
Battery 48
Processor Heatsink Cover  50 
						

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Front Fan Assembly 53
Mac Pro RAID Card and Battery  58
Memory Cage with Rear Fan 64
Processor Heatsinks 69
Processors 78
Speaker Assembly  83
USB Cable 86
Logic Board  88
Front Panel Board  96
Power Button 100
AirPort Antenna Board with Cables  104
Optical Drive Power Cable 108
Optical Drive Data (Ribbon) Cable  111
Ambient Board 113
Ambient Board Cable  115
Bluetooth Antenna Board and Cable  117
Hard Drive Cable Harness 120
Hard Drive Temperature Sensor Cable  122
Hard Drive Temperature Sensor 124
Power Cable Harness 127
Troubleshooting
General Information 133
Memory 133
PCI Express Cards  134
Internal Cabling Matrix  134
Thermal Calibration 136
Resetting the Logic Board  137
Power-On Self Test: RAM and Processor Verification  138
Diagnostic LEDs 139
Power Supply Verification   144 
						

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Mac Pro Firmware Updates 144
Processor Heatsink and Processor Visual Inspection Instructions  146
Symptom Charts 149
How to Use the Symptom Charts   149
Startup Failures  149
Fans  152
AirPort Extreme Card  153
Bluetooth Card 154
Other Failures  154
Upgrades
AirPort Extreme Card  158
Bluetooth Card  161
PCI Express/Graphics Card  163
Views
Exploded Views 168
External Views 170
Screw Matrix 172 
						

							© 2007 Apple Inc. All rights reserved.
 Service Source 
Basics
Mac Pro (8x) 
						

							Mac Pro (8x) Basics 7
Overview
The Mac Pro (8x) is the high-end configuration of the original Mac Pro and shares the same form 
factor. However, the Mac Pro (8x) configuration features two quad-core Intel Xeon processors, 
effectively making it an 8x-processor computer.
  
						

							Mac Pro (8x) Basics 8
Identifying the Mac Pro (8x)
To identify a Mac Pro (8x) computer, check the computer’s configuration label, which is located 
on the computer’s back panel directly below the video ports. Two numbers on the configuration 
label identify the computer as a Mac Pro (8x):
On the first line of the label, the EMC number is listed as “2138”• 
On the second line, the configuration description includes “3.0_8cx”• 
Serial Number Location
The Mac Pro (8x) serial number is located on the configuration label, directly below the 
configuration description. 
						

							Mac Pro (8x) Basics 9
GSX Parts
Because Mac Pro (8x) is a product configuration 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” field for the part or the “Exploded View” diagrams in the Views chapter. 
						

							Mac Pro (8x) Basics 10
Special Handling Instructions
The Mac Pro (8x) configuration 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 off the processor. 
Use care when removing the processor from the logic board. Lift the processor out of the • 
processor holder by inserting a finger or flatblade 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 30 minutes. The silver coating on the heatsink 
and processor degrades with exposure to air; more than 30 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 30 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.