My system crashes at various times. Crashes occur at start-up. Crashes occur after closing one program and opening another, usually games.
Kernel: Linux 3.8.13-100.fc17.x86_64
Memory 3.7 GiB
Cpu: Amd 4450E
Obviously, my OS is Fedora 17. At start-up, I reach the "Plymouth symbol" the small spinning disk freezes and then the monitor shows diagonal lines. The keyboard and mouse do not respond. I have to turn off and on the power, and then reboot.
The same result occurs when switching programs, but sporadically.
What do I need to do to solve the problems? Is this a software or hardware problem?