Hi All, My room mate just bought a PC and i helped him choose. His config is: AMD 7750 @ 2.7 GHz Palit 780G AA 2 Gb Corsair ram 800 MHz 250 GB HDD 20" Samsung monitor Others inclue Zebronics Cabinet, Microsoft KB+Mouse, and Creative SBS speakers. The problem that we are facing is that the system is not booting up. For a few days it didnt boot. Then someday it just started out of the blue. And it went well for 2 weeks. After that suddenly again while running, it went dead, and its not booting up any more. Monitor is not finding any signal. The fans are running fine everywhere. The HDD is rotating. But, nothing else is happening. Almost as if the MB does not exist. When it was down for first time, we took to a shop here in BBSR and changed the monitor, PSU, put in a graphics card, nothing worked. Then we took to velocity in Kolkata, wehre we bought the pc other than cabinet and monitor. They connected and it started working. We couldnt figure out anything as when we came back to BBSR, iot went out again. Please suggest some ways to solve this problem.