You may have experienced having your computer intermittently hangs-up, or may re-boot itself for no apparent reason. This can be annoying, and can mean you have lost valuable work that you we in the process of creating.

If this has happened once, then your chances of explaining the cause are remote in the extreme. If you find it happening regularly, then it is clearly in your interest to find and fix the problem.

There are a few things you can check for yourself that may save you a trip to the repair shop.