Macbook pro 2011 15" grey screen during start up

[albylizhard]

Hi everybody , my macbook pro 2011 stoped working today , I was opening a page with my browser and suddenly I got a white screen . I turn off the computer then boot it again but I always got a grey screen .

Then I try with the recovery screen ( comd-r ) , I also try reboot from an external back up and nothing , I can get to the screen where I can see the disk but then nothing , at the moment I launch i got a blue screen with vertical lines .

At this point I don't think that's a software problem , it sound to me like hardware : How do I know if it is becausea disk problem or because the graphic card ?

 

[T5BRICK]

It's probably your GPU.

https://www.apple.com/support/macbookpro-videoissues/

 

[MrAverigeUser]

Make a photo of the screen with the lines - just in vase that your MBP will work at the moment you bring it to the apple service. They accept these evidence for exchange of the mainboard.

I'd pref to go to an apple-certifid service than to go to an apple shop withnits " genius" ...pair

The extended repair program is again extnded until Dec. 16th 2016...

 

[albylizhard]

Hi thank for the replay .
My Mac came back to work after about 20 reboot ..... I enter the Safe Mode using this http://osxdaily.com/2013/08/07/how-to-repair-a-mac-disk-with-fsck-from-single-user-mode/ and finally it worked .

But is there any test out there to run and check if the hardware component are working properly ?