Originally Posted by Spinitch
Have you tried reapplying thermal paste yet? If the problem still occurs then its probably a motherboard problem.
When it was still under the extended warranty through Best Buy a few months ago, they reapplied the thermal paste. After I got the computer back, it was still doing the same thing. I found something interesting that could be causing the issue.
I don't know for sure yet, because I have to test it all day today, but the computer is a little over 3 years old. The battery has pretty much been dead for almost a year.
After doing some research, I discovered that a laptop's power system will dedicate processor resources, and a lot of power in trying to charge a battery. So if my laptop is constantly trying to charge my battery, and there is suddenly a low voltage that goes to the laptop, the laptop will shut off.
Therefore, I am going to test this today. I am going to be running my laptop all day without the battery and see if it ever just powers off. If it doesn't, then I will try again tomorrow with the battery in the laptop. If it powers off tomorrow, then I can only conclude that it is a battery related issue, and I need to consider getting it replaced. Wish me luck.