Chosen Solution

I was streaming video when the screen became pixelized & snowy. It wouldn’t respond to the mouse or the keyboard. I did a hard shutdown and plugged in the power supply. After it was plugged in for a bit, I tried to boot it with no results until the alarm started sounding. The alarm sounded for several minutes but no other indication that the computer was working. The alarm has since stopped sounding and I’ve tried to turn it on but it’s not responding at all now.

Can you still get your laptop to beep? try looking up your post code (alarm beep meaning): https://www.computerhope.com/beep.htm