Those beeps your computer emits at startup, yea, they mean something. If you're having difficulty figuring out why your Dell desktop, tower, or mini tower won't boot, take a look at this chart. Dell also has a diagnostics utility and can provide excellent technical support, sometimes. The numbers and hyphens mean exactly what's listed. For example, the sequence 1-1-2 means beep, beep, beep-beep. Some issues are caused by owner carelessness, others require hardware replacement. If you're unsure, either Google further, or contact Dell Technical Support.