Hi There all, i havent had need to alter jumpers they are set as on face of HDD, and as i said i have tried a (brand new HDD same make same 20 GBt,) (renewed all cables,) (CMOS battery,) all this advised by bootable CD that i am on right now, by doing tests like windows recovery console and fdisk tests, i am a novice so i can only follow advice but it would be great just to know whats wrong and double whammy to see my computer light up again... Rob Thanx... It just seems so unbelievable after all the given advice that it doesnt light up