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I did SSD upgrade on late 2014 21" and 2 weeks after it does not power on. Any idea? Is there a way to test power supply? Looking for power supply voltage pinout. Thanks.
I see that apple makes 2 different kinds of mother boards for iMac 14,4 1.4ghz i5. Part # 661-00147 is for HDD and # 661-00148 is for SSD. Does anyone know why they are different? Does that mean I can’t use SSD drive on mother board that’s made for HDD? Just trying to figure out why this iMac died??
Can anyone help me on this one?
