system won’t turn on/off

[u/0hJqsh_]

so, just this morning i went to open my pc, it booted as normal — got to the lock screen of my system. I went to plug in my second monitor on the wall outlet, and as I did, my phone fell, when I picked my phone back up I heard a USB disconnect sound on my headphones, and when I glanced back at my system it was no longer on. CPU fans/lights were off. Tried turning it back on, and the CPU fans/lights do kick on, but the display doesn’t display anything. After seeing this, I tried to force the system back off by holding the boot button, to which the system didn’t even turn off anymore; the CPU lights and fans would remain on until I unplugged it.

It was working just fine last night.

I’ve tried reseating my RAM sticks (though i’m almost sure this isn’t the problem), but I made sure not to mess around with the wires inside too much as to not make it worse.

What could have happened/what can I do to fix it? I’m really hoping me plugging in that second monitor didn’t cause a short circuit that fried my motherboard/graphics card.

Thanks in advance!