Apple mac pro early 2008 User Manual

© 2008 Apple Inc. All rights reserved.
 Service Source
Mac Pro (Early 2008)
Updated: 23 April 2008 

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 Apple Inc.
© 2008 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...

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Mac Pro (Early 2008)
Contents
Basics
Overview 7
Identifying Mac Pro (Early 2008) Computers 8
Serial Number Location 8
Special Handling Instructions for Dual 3.2 GHz Configuration 9
Handling Instructions 9
Safety and First Aid Guidelines 10
Disposal Instructions 11
Take Apart
General Information 13
Orientation 13
Tools 13
Parts Requiring Enclosure Replacement  13
Note on Illustrations 13
Opening the Computer  14
Hard Drives  16
Optical Drive Carrier and Optical Drives   19
Memory (FB-DIMMs) and Memory...

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Front Fan Assembly 51
Mac Pro RAID Card and Battery  56
Memory Cage with Rear Fan 62
Northbridge Heatsink 68
Processor Heatsinks for 2.8 and 3.0 GHz Processors  71
Processor Heatsinks for 3.2 GHz Processors 78
Processors, 2.8 and 3.0 GHz 87
Processors, 3.2 GHz 92
Speaker Assembly 97
USB Cable 100
Logic Board  102
Front Panel Board  110
Power Button 114
AirPort Antenna Board with Cables  118
Optical Drive Power Cable 122
Optical Drive Data (Ribbon) Cable 125
Ambient Board 127
Ambient Board Cable  129...

v
Thermal Calibration 151
Resetting the Logic Board  152
Power-On Self Test: RAM and Processor Verification  153
Diagnostic LEDs 154
Power Supply Verification   159
Mac Pro Firmware Updates  159
Processor Heatsink and Processor Visual Inspection Instructions  161
Symptom Charts 164
How to Use the Symptom Charts   164
Startup Failures  164
Fans  167
AirPort Extreme Card  168
Bluetooth Card 169
Other Failures  169
Upgrades
AirPort Extreme Card  173
PCI Express/Graphics Card  176
Views
Exploded Views 181...

© 2008 Apple Inc. All rights reserved.
 Service Source 
Basics
Mac Pro (Early 2008) 

Mac Pro (Early 2008)) Basics 7
Overview
The Mac Pro (Early 2008) computer features single and dual quad-core Intel 2.8 GHz processors 
and dual quad-core Intel 3.0 and 3.2 GHz processors. New CTO options include a 1 TB SATA hard 
drive and a 300 GB SAS drive.
Note: The 3.2 GHz configuration of the Mac Pro (Early 2008) computer uses a special coating 
on the processor heatsink and processor as was used on the Mac Pro (8x) processor heatsink 
and processor. The other 2.8 and 3.0 configurations of the Mac...

Mac Pro (Early 2008)) Basics 8
Identifying Mac Pro (Early 
2008) Computers
To identify a Mac Pro (Early 2008) computer, check the configuration code on the computer’s 
configuration label, which is located on the computer’s back panel directly below the video ports.  
See the following section “Serial Number Location.”
One other quick way to identify the computer is to open the side panel and inspect the memory 
cage. The Mac Pro (Early 2008) memory cage has a cross bar and looks like the following:...

Mac Pro (Early 2008)) Basics 9
Special Handling Instructions 
for Dual 3.2 GHz Configuration
The dual 3.2 GHz configuration of the Mac Pro (Early 2008) 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.
Important: These instructions apply only to the dual 3.2 GHz configuration.
Handling Instructions
Use these guidelines when handling the Mac Pro (Early...

Mac Pro (Early 2008)) Basics 10
See “• Processor Heatsink and Processor Visual Inspection Instructions” in the 
Troubleshooting chapter for more information.
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 for 3.2 GHz...