I have a MacbookPro 15" Retina mid-2012 going black screen whenever it switches to the dedicated GT650M NVidia GPU instead of the integrated GPU. This is apparently a well-knowned issue due to the bad solder joints of the U8900 power buck converter causing GPU VCore Failure. It has been documented by the infamous Louis Rossman for example (
).
I recently called a professional technician able to fix this issue. What he does is resolder the joints of this chip. But according to him, the fix is not stable, it can work two months and then the issue appears again.
Another technician told me it is a viable solution.
Could you tell me if it worked long-term or not for you ?
The stakes are 280€ not to be thrown out the window.
Any information would help !
I recently called a professional technician able to fix this issue. What he does is resolder the joints of this chip. But according to him, the fix is not stable, it can work two months and then the issue appears again.
Another technician told me it is a viable solution.
Could you tell me if it worked long-term or not for you ?
The stakes are 280€ not to be thrown out the window.
Any information would help !