Sometimes when i play dota 2 or Amnesia or any game, my computers monitor will go in "sleep mode" and this light under the power button (yellow orange with a cylinder engraving next to it) will go off as well, not only that but sometimes my computer will make that repeating freeze noise when it freezes
P) its only done that a couple times though
is my computer shot, or can i fix it?

is my computer shot, or can i fix it?