Rep: 7.8k
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2012 A1278 Model on the bench.
It turns on, fan spins, but that is it nothing else happens.The sleep light is on.
I have tried, removing RAM, Swapping RAM, Without the KB connected, Without a display, different HDD / SSD, Different working HDD cable, Reset SMC, PRAM etc..... Board looks clean, no water damage evident. Owner siad it just wouldn't start anymore. It does charge the battery though.
Is this a good question?
Rep: 2.3k
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What's good Livfe? This sounds like the CPU might not be executing?
It could also be a corrupted Bios.
For the CPU:
Check:
If VCORE never appears, the CPU isn't being enabled.
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Thanks, we will look into this and update with any findings :)
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