Mac Pro (Mid 2010) General Troubleshooting — Mac Pro Firmware Updates 21
2010-08-31
• Quick power cycle causes Memory Processor Board Diagnostic LEDs and CPU Overtemp
LEDs to illuminate solidly
Important: Since the SMC rmware is stored on both the backplane board and processor
board, it is important that the version of SMC rmware is the same on both boards.
Please follow the steps outlined in KnowledgeBase article HT1557, “About Firmware Updates
for Intel-based Macs,” to perform an EFI and/or SMC rmware update. Information about
rmware versions for Intel Macs can be found in KnowledgeBase article HT1237, “EFI and SMC
Firmware Updates for Intel-based Macs.”
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