I am building my own computer (first time). It is all put together, as per manufactures instructions. When I turn the computer on, it goes through setup as normal. Then, during operating system (OS) installation, the computer shuts down and emits a warning beep continuously. I am assumming that is is some kind of overheating problem with either the processor, heat sink, and CPU fan. Heat sink fan is working. Heat sink gets hot to the touch. CPU is AMD athalon 2600plus. What other options should I be looking for or what remedies can I do? I bought the processor used (I can still return it), is it possible that it could be overclocked and damaged? Any ideas or thoughts? Thanks.