New Computer Get's Black Screen And Sound Gets Corrupted?

I got this problem with my new computer which is when i play games recently the screen turns black (sometimes dark blue and with stripes looking graphics all over the screen). This have been happening sometimes in a week or 2 and sometimes it doesn't turn black but just get like a freeze for a few seconds and then go back to normal.it's starting to scare me since my last computer which was a laptop had the same problem, but there was no saving it.This computer is just a few months old, it has good RAM, CPU and graphics card.