This is a desktop pc. I have already had the hard drive relpaced twice and it still makes this noise and gets the messages. However, I went to the Dell website and updated my drivers. Only reason I wanna see if I can do anything else is that I paid the repair place $200.00 to repair it and of course it continued to do this so I dont want to have to spend that again plus more for a new until I am really sure there isnt anything that Can be done. So far it has stayed up for 3 days now without a message but this has happend before. Just wondered if anyone had any other thoughts about this. May very well have to eventually buy another system. Thanks for all your input!!!