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2012年6月発売。Core i7プロセッサ 、Turbo Boost / 最大1 GB DDR5 Video RAM

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MacBook Pro 15” Mid 2012 suddenly goes to sleep

Hi. I am a dj and I own a MacBook Pro 15” Mid 2012. Also a MacBook Pro 13” Mid 2012 that I use for my work. I tried to use the 15” for my live sets in the places I work but the only thing I got was getting sucked. The 15” keeps getting in something like a sleep mode but not like the usual one. It doesn’t “wake up” with a touchpad click or a button press. Instead it needs some time and as you all imagine, this is the worst thing that could happen to a dj. Please help me with this. I already read everything in forums like magnets and stuff like that. Nothing worked for me.

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@sonah_t - I would strongly recommend you check your battery. Your systems age is telling me it likely needs a new battery given your symptoms.

Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see iFixitでの質問に画像を追加する方法

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Ok I did it. Thank you Dan.

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Your system will try to go to sleep mode more aggressively when its on battery. Your SMC will do this more so with an old battery! So keep that in mind! Try to keep your system powered to reduce the risk.

You can alter your Energy settings clicking on the battery icon in your menu bar

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There are a few apps which can help prevent your system from going into sleep mode in the middle of your DJ gig: like Jolt of Caffeine

Update (09/28/2020)

I think I found your issue!

I noted your TG Pro output offered something my system doesn't show! As it turns out I also have a 2012 15" MacBook Pro 2.7 GHz system which I use answering peoples Q here. Your output shows 'Platform Controller Die' where mine does not, as you can see here:

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So I went back to double check your model info to make sure you had a 2012 system taking note what CoconutBattery tells us. Then to make sure I wasn’t seeing things I also ran CoconutBattery on my system. As it turns out I had recently replaced my battery. Then it hit me! Your battery while showing it still has 83% of life left the batteries mAh values are much lower than they should be! Here’s mine and yours side by side:

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Don’t focus on the design cap as that is just the battery has been programed with. Yours is trying to imply its better than it is, and in my case the battery value is lower than what the battery is really offering!

Where did you get this battery?

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I have already checked every possible combination in energy saver settings and still no luck. I also have “no sleep” installed that prevents MacBooks from going to sleep but in this case doesn’t work either. Btw the battery is new and I always use power supply and not the battery when I work. Thank you for your answer.

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@sonah_t - If your system shutting down by chance while running a heavy work load? You may have a thermal issue so the system shuts down to prevent over-heating. Lets look deeper into the thermals, install this great app TG Pro post a snapshot of the main window for us to see what its doing after you've run into a shutdown event. Do make sure to capture the lower sensors and fans.

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Ok. Take a look now @danj

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I bought it from eBay @danj. I attached a screenshot.

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@sonah_t - Can you get an warranty exchange? I'm thinking the battery is the issue just a bit different than I had expected.

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In general, this type of issue suggests a power management problem or another hardware-based configuration fault that can usually be tackled by the generic troubleshooting steps of resetting the Mac’s Parameter RAM (PRAM) or its system management controller (SMC).

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Ok I did it. Now I am waiting. Thank you for your answer @nichoplus

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Nope. Nothing. Still the same. MacBook sometimes powers off and sometimes goes to sleep.

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Thanos Moraitis さん、ありがとうございました!
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