From the past 1 month , i have been experiencing a very strange problem my system shuts down randomly under load or sometimes without even being on load its a very random event and sometimes the system reboots itself,but mostly it shuts down and doesnt even boots even if i press the power button sometime.Lately i have noticed that when i remove the power cord and plug it back again it boots up. Can anyone tell me what components is posing the problem so that i can get it exchanged/repaired its been only 2 years since i have bought this pc.