I found what I thought was the compatible RAM via Crucial's advisor (see this thread: http://www.bleepingcomputer.com/forums/t/511601/how-to-know-which-ram-to-buy/), installed it and the machine would not boot up. I took the precaution of taking out the battery prior to removing the old memory and installing the new memory. However, when we decided to put the old memory back in to see if that still worked, we forgot to take the battery out Pooey. Is it a total loss? Or is there a way to salvage this machine? any help would be greatly appreciated. thank you.