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
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Read how to maintain and repair any desktop and laptop computer. This Ebook has articles with photos and videos that show detailed step by step pc repair and maintenance procedures. There are many links to online videos that explain how you can build, maintain, speed up, clean, and repair your computer yourself. Put the money that you were going to pay the PC Tech in your own pocket.