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2011 MacBook Pro not booting

C

cbt3

macrumors member
Original poster
Dec 14, 2011
97
0
The other day my MacBook Pro crashed while using it, it flickered with some weird green lines on the screen and then would not boot. After a few sporadic tries, it did boot for a time, once even for several hours, before crashing again. Thinking there might be something wrong with the boot drive, I tried with an extrenral, which orignally worked, but now is not working. Now the boot screen has strange green color errors on it as well, and I have the same issue booting off either drive. Recovery mode/ safe mode do not load. Reset PRAM/ reset SMC do not help.

I did a diagnostic and it came up with no errors.

Any ideas what might be causing this?
 

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If the 2011 you have is 15" or 17", then you'd better read up on "RadeonGate".
Much posted about it.

It's a GPU failure.
Best thing to do is DISABLE the discrete graphics and run only with the CPU's integrated graphics.
There's a long thread that details how to do that posted in the "sticky" area in the MacBook Pro forums...
 
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