I'm working on my brother's PC. I want to change his motherboard from IPISB-CU (Carmel2) to a MSI H61M-P31 (W8). They have the same chipset and same CPU socket, and I will put back other old components to this new board (CPU, RAM, GPU, Hard Drive,... from the IPISB-CU (Carmel2)). Do I need to re-install or do anything after installation? If I need to re-install, are there any other options without re-installing Window? I don't think I have the win7 installation disk... I really want to just put the new board in and turn on the computer like normal without doing anything else. Thanks