I've got an Early 2011 MBP that has a circa 2013 logic board in it (which was later determined to be part of the Class Action lawsuit involving the defective logic boards), and a non-original SSD, HDD, and RAM. I've been using it basically as a desktop for quite a while with a Dell 27" screen, and external keyboard/mouse. Today out of nowhere, vertical lines appeared on the screen, and the machine was completely nonresponsive. I tried unplugging the MDP and USB and rebooting, it got stuck on the progress bar as it was trying to boot. I tried resetting the SMC and pram. I tried Recovery mode, and it got to the Apple, but never into actual Recovery mode. I got it into Internet Recovery mode, and it downloaded the recovery, but can't seem to actually boot it, it's trying to do something, as it's in 747 mode (fans roaring). I tried Googling for vertical lines, but I couldn't really find anything about similar issues. Has anyone heard of it, and if so, what's wrong with this thing? Is it fixable, or is it time to build a new PC and go with Windows 10? --- Post Merged, Oct 17, 2016 --- Oh yeah, it's on it's second or third battery too, although that's probably neither here nor there. Right now it's getting shown up by my fake MBP, which is some Acer Chromebook that is a ridiculously shameless knock-off of the MBP.