power light flashing

Hey all ! My pc boots up and looks to be working fine but there is a solid blue light next to my power button and a orange blinking one , just trying to find out what the orange blinking one is Tnx

I've had an ACER S271HL for the past 4 years now, and everyday before this week it has worked perfectly fine (though it had a very very few dead pixels), though starting this week the power light kept flashing blue and orange repeatedly and the display would stay blank, though after a few...