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Mid 2010 Model A1278 / 2.4 もしくは 2.66 GHz Core 2 Duoプロセッサ

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MacBook Pro does not boot to OS, turns off itself

Hi i got a 2010 macbook pro 13" that is not booting.

i have tested ram and hdd and can confirm they are not the issue.

what's happening is the macbook will be stuck at boot screen, about half way through the loading bar on normal boot and if i try safemode, it will be stuck at 3/4 of the bar.

if that doens't happen, the mac will shut itself off while loading.

i can also confirm that the keyboard is not causing this as i tried powering macbook up without keyboard connected through powerpad and still get the same result.

anyone got a fix for this? i am leaning towards to graphics card issue.

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Very likely the GPU or some other logic board issue. You'll need to decide if you want to keep this puppy going or get a newer system. Keep in mind this is one of the last Core Duo Apple still supports with their OS (High Sierra). If you haven't already upgraded your RAM to 8 MB or more as well replace the HD with either a SSHD or SSD then you'll need to consider these costs to keep it running smoothly.

Here's the IFIXIT guide to replace the logic board: MacBook Pro 13" Unibody Mid 2010 基板の交換 and here's the logic board I recommend: MacBook Pro 13" Unibody (Mid 2010) 2.66 GHz Logic Board

MacBook Pro 13" Unibody (Mid 2010) 2.66 GHz Logic Boardの画像

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MacBook Pro 13" Unibody (Mid 2010) 2.66 GHz Logic Board

$249.99

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Pretty much all the A1278 models have a bad harddrive cables which cause this booting issue. But doesn't explain why it's turning off.

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I replaced the HDD cable and airport card before. Do you think it's got something to do with that?

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because the harddrive cables are bad, it usually causes the machine to lag alot, but eventually may corrupt the harddrive. Whether or not that corruption would cause os x to crash, im unsure of. But a new hdd cable & os x re-install / new hdd fixes that issue.

Whether or not thats why your computer is turning off though i couldn't say. its definetly 'an issue' i just dont know if its all your issue.

さんによる

@ifixelec - Keep in mind the HD SATA cable issue effected mostly SATA III (6.0 Gb/s) systems and more so when using a SATA III drive. This older system only has a SATA II (3.0 Gb/s) interface so while it could have a bad cable the loading bar issue is telling me the GPU/PCH chip is failing.

Remember this system is the last dedicated GPU 13" model before Apple went with Intels onboard HD Graphics & Iris graphics services. This system has a combo chip which has the NVIDIA GeForce 320M GPU and within the same chip as the systems PCH logic (also NVIDIA's).

さんによる

thanks for the info @danj ! Always see you posting good info around here, appreciate it

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nick さん、ありがとうございました！
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