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Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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Stuck at logo screen

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barely turns on but getting this when it wants to turn on it started to happen once i changed my trackpad to a new one

Answer this question I have this problem too

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Apparently it was a loose memory that cost this.. im glad it was that instead

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Yeah i ran test on it and everything pass i was confused cus the cpu chip was still in good condition i guess when i replaced the trackpad is loosing the memory didnt notice till now

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Ouch! Not good 😩😣😢

The Intel CPU chip set has failed! This series uses the built-in graphics engine within the CPU. What you are seeing is a graphics side failing so the system comes to a standstill!

You might see this physically if you pull off the heat sink you might see one of the two chips cracked.

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@djmavstar - mmm the Intel graphics engine does use the main memory for its video RAM so that explains that. I haven’t encountered that condition before so you taught me something new!

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Jonathan will be eternally grateful.
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