my ps3 isn't working

so i hod to restart my ps3 and now when ever i turn it on i have to go through the set up page. as i am doing this the words become grainy. now after going through it all, all i have is a blank screen..

someone please HELPPPPPPPP!!!!!!!

Try changing the video cable. If that doesn't work, try restoring the file system.

Hopefully the GPU isn't fried.

now all it does is freeze do you know why that might be happening?

I paid Sony twice $90 to replace it. Might just have to ship it. They'll do it for $90.