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2010年4月発売。2.4, 2.53 GHz Core i5 or 2.66, 2.8 GHz Core i7プロセッサ

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Mac's Kernel panic at some apps

Since upgrading to Sierra, my mac has kernel panics at some apps like Microsoft Powerpoint, games or when playing a video. I downgraded back to snow leopard, but it still has the panics.

Here is content of one of my panic reports taking from Snow Leopard logs:

Interval Since Last Panic Report: 191 sec

Panics Since Last Report: 1

Anonymous UUID: 1BB80606-BBC0-4FAE-A75C-A69DE63ED822

Sat Nov 11 13:57:34 2017

panic(cpu 2 caller 0x5bf51c97): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0x0a2910de 0x00100000 0x00000000, BAR0 0xd2000000 0x7f0c4000 0x0a5480a2, D0, P2/4

Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)

Panic Report

Is it a RAM related problem? I swapped the RAMs with a another pair of RAMs, but it did not help. I still have the crash. I have started the extended Apple Hardware Test, but so far it has not found any hardware issues. I'll report back if it comes across a hardware malfunctioning.

Any ideas will be greatly appreciated.

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For anyone who has the same problem and likes a quick makeshift solution, though clearly not the best one, visit the following site and download the app. It works!

https://github.com/julian-poidevin/MBPMi...

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I had this exact same problem with my mid-2010 Macbook Pro, for me it was caused by a capacitor on the logic board that had broken and shorted. I replaced mine a couple of days ago and haven't had the problem again since. If you have also noticed that you have a lower than normal battery life then this is most likely the cause. I think it is supposed to be using in powering your GPU's RAM which would make sense why it says that ram is a problem. Until I fixed this problem I used a program called gfxCardStatus (https://gfx.io/) which allows you to force the use of intergrated graphics in a little drop down in the top right of your screen. It will mean that you can't really game with your laptop but it should stop kernel panics.

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Thanks for replying. Did you replace the capacitor yourself? Could you let me know which capacitor?

Do you mean the one circled in the following picture:

https://camo.githubusercontent.com/53c80...

Thanks.

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So very sorry that I forgot to reply. I did replace the capacitor by myself and yes it is the one circled.

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Does it need high-tech tools for doing so? It must be very tiny.

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I managed to do this myself with a soldering iron that I already had and some fine soldering tips. If you are going to do this yourself; make sure that you put the capacitor on the correct way and watching this video should help with any other questions you may have:

https://www.youtube.com/watch?v=DzcgT_fi...

If you need anything else please feel free to ask, also below is a link to buy the capacitor if you do decide to do it yourself.

https://www.mouser.co.uk/ProductDetail/P...

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Thank you so much for your help, but at the moment the software solution I mentioned in my comment above does the trick. Maybe I'll try the harder alternative if absolutely have to.

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Kernel panicks could be many things.

Bad RAM or ICs are a last resort and very rarely the issue.

To start, I would try checking the hard drive.

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Thanks for your answer. But I am sure the capacitor mentioned in the above post is the problem. Fortunately, there is a makeshift software solution for this problem:

https://github.com/julian-poidevin/MBPMi...

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Saeed さん、ありがとうございました！
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