I aqquired a Toshiba C75D-A7370 laptop, from my information I was told that it slid off the bed and hit the floor. Now when the power button is pressed, the white power LED turns on, then turns right back off. I have tryed reseating the memory, HDD, and pulled the CMOS battery. Pulled the laptops battery and held power button for a minute and reinserted. Also tryed an external monitor. I am assuming the motherboard is toast. I split the case cleaned the dust out and inspected, nothing out of ordinary. Any other thing I should try before I put a board in it? Thanks for your input guys.