Macbook Pro 17 2011 problem.

[quic307]

Hello friends and happy new year,
I have a problem with a Macbook Pro 17" 2011, as you can see the photo.
The problem it's not GPU or vga RAM, I change the chipset and VRAM but same isswe.
Has anyone found the same problem... and fixed it?
Thank you in advance.

[basic]

Re: Macbook Pro 17 2011 problem.

if not GPU then is screen ..

[piernov]

Re: Macbook Pro 17 2011 problem.

I pretty sure this is a GPU problem and the "new" GPU is an old dead one that was rebadged and reballed.

[cacla]

Re: Macbook Pro 17 2011 problem.

You check the rails on vga ram to gpu some time they are oxidized.
i have a simaler problem on one acer i replace gpu and vga ram and the problem was in the rails on vga ram to gpu.

[quic307]

Re: Macbook Pro 17 2011 problem.

Of Course there is no screen problem ... I was check it with external too.

I have two suppliers where I buy chipsets, so I try 4 different chip new +2016. Same problem.

There is no oxidized, I guess the problem is with rails or something else but I cant find it...

[cacla]

Re: Macbook Pro 17 2011 problem.

Check the rails under mikroskop

[dellxps15]

Re: Macbook Pro 17 2011 problem.

power pc with script to enable intel vga only and check if it's the same problem. if yes we'll focus on pch lvds line, otherwise ati lines.

[quic307]

Re: Macbook Pro 17 2011 problem.

power pc with script to enable intel vga only and check if it's the same problem. if yes we'll focus on pch lvds line, otherwise ati lines.

I check it and it's ati lines. Now what I must to do? To check any line and all parts one by one?
NOT EASY ...

[inspirim]

Re: Macbook Pro 17 2011 problem.

controllare i condensatori smd sotto la gpu

[quic307]

Re: Macbook Pro 17 2011 problem.

controllare i condensatori smd sotto la gpu

I agree with you, but which caps are the problem?
I try with the 100nF, but same issue.
Have you ever solved that issue?

[fludor]

Re: Macbook Pro 17 2011 problem.

I agree with you, but which caps are the problem?
I try with the 100nF, but same issue.
Have you ever solved that issue?

Can you please share the password of the board view archive?
Thanks