CMOS checksum error -- Defaults loaded CMOS battery failed What's the problem with my PC?
You need to take your PC to a repair shop, or find a friend who is good at these things. My guess is that there is a battery on your motherboard that needs to be replaced. Normally, these batteries last a few years, but there are functions, such as the clock, that require a battery to keep running properly, and when that battery dies, you replace it. However, you didn't give me a lot of information -- like what make of computer it is, how old it is, what OS you're running, or even what kind of CPU it is. I'm guessing it's some sort of IBM-compatible something or other. There are other things that could also be the problem. They include:
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