There have been a few posts on this procedure. That said, I have not read anyone mentioning the 1st critical step of "Clearing the "CMOS" first. A few years ago, while sniffing around in the Microsoft "Knowledge Base", it was stated that to effectively zero or "low level format" a HDD, this is necessary. When clearing the CMOS, YOU MUST PULL THE POWER PLUG FROM THE WALL RECEPTICLE before removing and resetting the jumper or you will FRY your Mobo. LOL. Again, a few years ago, I forgot to disconnect the power first and FRYED the Mobo. Fortunately, EPoX replaced the Board for me. An example of clearing and not clearing is, with my Foxconn Socket 939 Board, when I have not cleared the CMOS first, upon completion of the procedure and starting to load the OS, the BIOS will alert me that I have made a modification. When I clear the CMOS first, I don't get this pop-up notice. Before I forget, with a Laptop, you pull the Battery to clear the CMOS. In my brief experience with Linux, only three years now, I have found that this procedure is a mandatory step to a perfectly clean and flawless installation. Also, and in summation, if you have either a Seagate, Western Digital, or Hitachi HDD, all three have a Diagnostic Tool that includes this feature.