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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
Serial Number Location 17
Liquid Cooling System (LCS) 18
General Safety Information 18
Safety Guidelines 18
Take Apart
General Information 21
Orientation 21
Tools 21
Special Tools 21
Power Cord 22
Parts Requiring Enclosure Replacement 22
Take Apart Procedures 22
Opening the Computer 23
Serial ATA Hard Drive 26
Serial ATA Hard Drive Data Cable 29

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
Processor (Dual 2.0/2.3 GHz) 77
Processor Inlet Frame (Quad) 83
Processor (Quad) 85
Processor Support Bar and Cable 103
Front Panel Board 106
Power Button 109
Logic Board 112
Antenna Board and Cables 120
Power Supply 126
Air Deflector Sensor Board 132

Troubleshooting
General Information 136
DDR2 Memory 136

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 148
Other Failures 149
Upgrades
AirPort Extreme/Bluetooth Combo Card and Runway Card 152
Views
Exploded Views 156
Exploded View 1 156
Exploded View 2 157
Screw Matrix 158
Internal Views 160
Overview 160
Logic Board 161
External Views 162
Front View 162
Rear View 163