Bought this because my Dell computer that was old wouldn't turn on. I got my older to turn on so the new one was left in a box for a year unused and didn't plug it in, didn't do anything with it and my old computer finally died. Hooked up the newer one and it lasted 4 days before it wouldn't turn on. Luckily I b the Ascurion warranty and got my money back. ALWAYS BUY THE EXTENDED WARRANTY.