Acer Laptop won't run

I have an Acer Aspire E1-570

About two months ago, one of the screen joints stopped pivoting. Almost immediately after, I noticed that the screen would take from 5 to 15 minutes to light up. I dunno if they're connected, just mentioning it.

It's not just a screen problem. The Windows doesn't boot, not even the BIOS starts. As if there's no power, even though the power light is active and the laptop is naturally heating. I made sure when I connected another monitor with an HDMI cable. There was no difference.

I fixed the joint but the other problem remained. Lately though I would keep trying a whole day to start it up multiple times to no result. It would sometimes take hours, or even a couple of days of trying to get it running. I opened it up, cleaned it, took out the RAM, changed the Hard Drive, tried to run it without the battery. Nothing.
I also noticed that the fan sound is noticeable at first but then it quickly faints. I don't know if that means anything.

One friend told me that he thinks my GPU is screwed, but that's not something I want to hear. So I came here for a second opinion.

Any help is deeply appreciated.