Yeah dust could be it too, my old ass PS2 gets so dusty I have to take it apart then clean it for it to work. I 've had it since I was like eight though lol.I figured I need a laptop for school anyways- but im holding out 2 see if financial aid can cover it as part of books/supplies. Switched out the power source completely- didnt help. No way 2 test fan motor- but honestly, i think it just needs a good can of duster and a new harddrive. Lol- i spend most of my day on the computer so this is like torture for me. Going 2 the dr 2day. Hoping 2 get some scans done on my back.