Black Hole

Today I've woke up to this black dot on my ASUS VE278Q, I know that It cannot be fixed but I've been wondering what can cause it? Nothing even touched monitor or has been spilled over it. I've been thinking, over the night during the thunder I've pulled out my cables from the wall and plugged...

So I dont see the Graphics card where it should be so im thinking its integrated? So I have a couple questions, if you guys could help me out. Is my graphics card integrated? Would I have to remove it if I wanted to install a new card like a 470 or something like that so I could play some...