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Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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Unit will not fully boot.

I’ve tested multiple hardrives with known working partitions.

i’ve swapped out the hardrive cable with a new functional cable.

tested the hardrive on separate macs, and they work fine.

I’ve performed a Pram reset and reset the SMC to no avail.

It passed multiple extended hardware tests.

It has no peripherals connected and isolated further by removing the non essential components, Airport/diskbay.

And i legitamitly have ran out of ideas.

any thoughts are welcome…

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Bu iyi bir soru mu?

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does it work with a USB to SATA adapter?

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It will not boot to externals or recovery mode.

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Is it shutting off at 75% loading bar? Usually it's bad GPU in the 2011 15” unibodys.

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It’s making it to 100 percent but then it just hits a blank white/gray screen and shuts off and try’s again.

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Jared Owens sonsuza kadar minnettar olacak.
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