Hi. My computer has lately been crashing or "powering down" by itself. Many people I've asked say either the vents are clogged with dust or the processor is weak due to overuse. I know it isn't dust because I opened up the laptop and made sure everything was clean. It still crashed so I think it was the weak processor. A message shows up that says something like "System OS checksum-bad-default configuration used". What does this mean?
I doubt that the CPU is causing the problems. That's generally one of the most durable components imaginable. I did a quick Google search and one possibility that came up multiple times was failing CMOS battery. You mgith need to get your CMOS battery replaced.