선행 작업: iMac Intel 21.5" EMC 2544 Hard Drive Replacement

1. iMac Intel 21.5" EMC 2544 RAM Replacement
2. iMac Intel 21.5" EMC 2544 Blade SSD Replacement
3. iMac Intel 21.5" Retina 4K Display (2017) Blade SSD Replacement
4. iMac Intel 21.5" EMC 2544 Logic Board Replacement
5. iMac Intel 21.5" EMC 2544 Heat Sink Replacement
6. iMac Intel 21.5" EMC 2544 AirPort/Bluetooth Card Replacement
7. iMac Intel 21.5" EMC 2544 CPU Replacement

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