Mate my P750ZM went down in a blaze (literally, smoke and all). Some sort of power overload that left a charred mark on the MB. Trust me buy new current gen laptop now or you are wasting your time and money buying spare parts. I recouped almost $1500 selling salvageable parts on eBay (CPU, GPU, RAM and SSD were completely intact). RAM prices were nuts earlier this year so there was that added benefit considering they were 3 year old DDR3. I went out and bought a P775TM-G from HID, shipped all the way from US to Australia. Best laptop decision I ever made.