I have been having issues with my computer instantly powering off, as if the electricity went out, then it powers back up right away. I took it in for repair and was charged around $200. They replaced my video card and said that the issue was because the video card was failing. Now that I have my computer back. it is still doing the same thing. It typically happens when I'm watching any video, or playing simple games (like runescape). That's the only game I play on here. The only other thing I do on the computer is I download and edit Xbox clips using windows movie maker. The computer also crashes while doing that. I know that my computer is not overheating because the fan is working, the dust is cleared out, and I had an additional fan installed when my computer was being repaired in case overheating was the actual issue. I don't want to keep taking in my computer so they can say they found the issue (but actually guess), change some part, and charge me for the time and parts.
Does anyone know what the issue could be or how I can find out what is going on? I can't afford to keep sending it in.