"Like all pieces of electronic equipment, computers have a tendency to malfunction and break; if you have never experienced kernel core dumps or unexpected crashes, consider yourself lucky.
"A GNU/Linux live CD distribution can come handy for hardware diagnostics. For this purpose, my favorite live CD distribution is GRML, which bundles the tools we're about to discuss, along with some other useful programs for both home users and veteran system administrators. Other distributions also include some or all of these tools..."
