Colored lines on screen (graphics snow)
Hi everyone,
Wondering about this strange behaviour that I encounter on 2012 i5 1600Mhz memories (not 2010 MBP 13 C2D 2.4ghz)
I posted a link of uploaded image: https://s28.postimg.org/f1bsi0wwd/DSC_05...
I have played the lottery and bought the machine, hoping it is an issue with memory chip. I have encountered that display / crash error on machines with failed memory chips or wrong memory compatibility.
Mac boots up fine from USB stick, start the install process of El Capitan, then... lands into garbled lines of multiple colors as it can be seen.
So - is this a graphics chip failure, where heat buildup makes it crash and burn? Or is is something else on the board, a capacitor or resistor not doing its job?
Many thanks! T
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댓글 14개
Did you try an external monitor to double check things?
Also you talk about applying fresh thermal paste on the CPU did you forget to do the GPU as well?
Dan 의
To be honest, I did think about getting some strip of copper/ looking up aftermarket. There is no cooling copper heatsink on top of GPU, only on CPU.
SERVXCESS 의
No don't do that! I think you have a different model than what you indicated here. Doesn't your logic board look like this? with heat sink or this without the heat sink present note the two spots of thermal paste (CPU & GPU)
Dan 의
Double check here: EveryMac - Lookup using your systems S/N.
Also where you able to see an image on the external?
Dan 의
erm... yea, it is actually a core i5 from 2012... lol... didn't check, got another one 2012...3rd gen i5.
I figured this one is C2D as the ebay listing mentioned, but it is cleary a 2012 machine!!
So it was fine with 1600Mhz memories...
That changes things - any thoughts, graphics chip burnt out?
Many thanks Dan!
I've been so focused on the other machine, which was liquid damaged but really like new, I got it back on its feet, working flawlessly.
Now it is time for this other 2012 13 inch :)
Note: bought 3 rotten apples, 1 was flawless, one was air i7 and this one with the funny colors.
SERVXCESS 의
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