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2.2 GHz (Turbo Boost up to 3.4 GHz) or 2.5 GHz (Turbo Boost up to 3.7 GHz) quad-core Intel Core i7 processor with 6MB shared L3 cache.

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15" 2014 MacBook Pro 2.5gHz just died. Logic board?

I bought an excellent condition 2014 15" MacBook Pro 16/512 for only $189 five months ago and while using it yesterday converting some music files — fans blazing of course — it died on me. Black screen, fans stopped, completely shut off. It was plugged in via MagSafe and the light was still on, and continues to light as we speak. I tried an SMC reset and I disconnected and reconnected the battery but still dead. I'm sure there are multiple Mac gods here that might be able to tell me if that means this needs a new logic board? If it's something crazier I'll probably just sell it for parts.

Thanks in advance!

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Based on the description of the issue and the steps you've taken, it does seem probable that there's a fault on the logic board somewhere. Replacing the logic board would probably resolve the issue but it's hard to say without first inspecting the current board and doing a deeper diagnosis. Good luck!

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Forgive my relative ignorance but would it be visually obvious with a close inspection or would I need get in there with a multi tester? Are there any specific bits on the board that are known to fry more frequently than others? Thanks!

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Whether or not it's visible depends on the type of failure. It might be visible if a component has blown out or an area has become corroded due to liquid contact, but it might not be visible if a component has shorted to ground or failed in some more subtle way. The first step in attempting to diagnose the board would be to carefully remove it and visually inspect both surfaces of the board for obvious signs of damage. If no damage is found, then the issue would likely require more advanced troubleshooting (using a multimeter or other tools). Good luck!

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