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Mac mini Late 2014 HDD Replacement

Hello all,

I’ve followed Sam’s amazing step-by-step on replacing the HDD on the late 2014 Mac Mini. I feel like I got every step correctly, unfortunately the system doesn’t boot at all. No power light, and the fan doesn’t even turn on.

Any ideas on where to begin to troubleshoot this?

I’m at beginner level when it comes to Mac hardware. Also any guides online that might help solve or begin to troubleshoot in the right direction would be appreciated.

Thanks!

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Did you put in a 2.5" SATA drive or a PCIe blade drive?

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2.5" SATA Drive

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Why not start by checking that the power supply cable to the logic board is inserted all the way in.

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I've double checked that connection.

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A common issue is the ribbon cable getting damaged as its a tight fit.

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Dan I've double checked the ribbon cable ensuring that it's not damaged and secured properly. Also, do you know if the hard drive is not plugged in would the Mac at least turn on? I'm suspecting a power supply could be at fault here, but have no idea on how to test it.

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The system should start up without the drive, you'll get a folder icon with a blinking question mark on the screen as you won't have a the systems files available.

Look at the logic board for damage and make sure the power supply connector got inserted fully.

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Any recommendations on how to test the logic board and also testing the power supply? I'm pretty sure the power supply is seated properly in the back but can't be certain. The screw for the power supply aligns properly so I assume it is fitted in properly. Thanks for your continued help.

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