Urgent Mbp black screen. Has a chime

[Patrick-44]

I posted this on Friday https://forums.macrumors.com/thread...ing-folder-icon-keychain-disappeared.1961780/I tried backup from time machine but selected lion not el capitan. Now my laptop won't start The fans are going constant when I try turn if on. It's just a black screen. Caps lock button lights up when pressed. The chime can be heard when it starts up. The lights under keys did show now they don't. The small light led shows it's powrd on. When i close lid n gets brighter and stays solid. I've tried reset pram smc. Tried it not plugged in and plugged in. Tried command r n tried. I've lost most of passwords n now need them as I'm in 4th yr of I I which requires log in details. I'm panicking
[doublepost=1458575873][/doublepost]MacBook Pro late 2011 15" unibody

 

[tubeexperience]

I also have the a Late 2011 mode (but 17-inch).

Anyway, the 2011 model is notorious for the GPU issue:

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

An affected MacBook Pro may display one or more of the following symptoms:

• Distorted or scrambled video on the computer screen
• No video on the computer screen (or external display) even though the computer is on
• Computer restarts unexpectedly