I have a Samsung Series 3 Notebook (NP355V5C) and I bought it second hand hoping it would be something small wrong with it. Anyway when I push the power button the power led indicator comes on and I can hear the cooling fan start then all of a sudden it powers right off. No screen lighting up or displaying anything and I can hear the HDD booting for approx. 2 seconds. What could it be someone please help me???