I've been given an N115 (CM2130 series) from a family friend, but the laptop will not power on. I've checked the the power cable an it works fine. I believe it is a problem with the motherboard. After searching the web for hours I've come across a site that carries the same Part Number as the one i have. My question is can i change my current 254103-001 to 263723-001? The 103 has 128MB on board ram where the 723 has 256MB. Will all the original parts of the laptop work with the different motherboard part in it?