HI, for the last few months i have this booting problem (my pc does not start and the monitor is only blinking). I just recently upgraded my RAM (based on what my MoBo supports) and formatted my os after that. Here's now the new problem, every time i boot my pc hangs at bios screen. What should I do? What do you think is the problem? Do I need to replace some hardware? Please help me, im not a technical person...