I need help!!!!

Most of the time when I start up my PC it freezes on start up. Othertimes, it will load up and then freeze within 5 minutes, or just crash!. I have received a "CMOS checksum error" before, but not in a while.

Whats going on? I think it might be my BIOS. I'll give you any info about my PC just tell me what you need.

Can you boot into safe mode? And if you can, does it freeze in there too?

Sorry for spaming, but I forgot to ask you, yeah, tell me more stuff about your computer, like your OS and stuff like that. Also, have you disconnected your power out of nowhere? And try getting into BIOS and check if you see anything abnormal, and change that setting. But tell me what you see in there first! Whats your computer model?

Firstly check to see whether you system is overheating (so make sure all fans are turning)

Your CMOS battery could also be flat, if you have a multimeter you can test the battery and make sure it is still above 3V

I checked my graphics cards fan and it wasnt turning. So I replaced it. System seems to be working now!