That's a video of the problem I'm having.
Everything before the problem:
It cut off randomly with no warning
It was doing no heavy tasks, just youtube, facebook, and skype.
Nothing about it has changed recently other than its location and that it has my new external hard rive.
It's case cover has been off for almost a year now due to rattling and I live with cats.
It's graphics card and hard drive have been replaced within the time I've owned it (7 years)
I use it for pirating, if this could possibly be virus related?