PC Suddenly turnoff and start again

[vrsvishnu007]

Hi guys, I am so confused. My PC suddenly turnoff and restart again,not all time two or three times in a week. During the time PC restart (suddenly turnoff)i can hear tick tick sound from my UPS. I think tat my UPS is bad and i changed my old UPS to APC BR 1100.But the same problem exist. My PC specs Are
PSU : Corsair VS 650
MB: Gigabyte GA h87 Md3h
CPU : Intel core i7 4770
Cooler: coolermaster hyper 212X
Ram : 4 gb DDR3
HDD : 2 x1 TB Segate
Fans : 4 fans including hyper 212X' fan
UPS: APC BR 1100
First time i think it is caused by voltage fluctuation, but major times in voltage fluctuations no problem found.I use a 3 pin plug adapter (UK pin to Indian ) to connect my PSU power cord to UPS.
Guys please help me to find real problem. Is my PSU is cause this problem? Sorry for my bad English. Thanks in advance guys.....:'🙂'🙂'(

 

[sbpromania]

Did you tried to monitor your PC CPU temperature? It could be a cooling related issue and this is why your pc restarts.

 

[Anubis]

willing to bet its your power supply

same thing one of my comps was doing. replaced he PS, no more random reboots

 

[i7Baby]

Could be a number of things. Boot into Safe Mode (F8) and disable 'auto restart on failure'.

Then fit and internal speaker, disconnect the OS drive and see what post/beep code you get per http://www.computerhope.com/beep.htm

 

[TechWiz365]

Try and boot from another operating system using a live CD or flash drive?

 

[XLer8or]

Right-click This PC, select properties. In properties hit advanced system settings. ON advanced tab select settings for startup and recovery. On sys failure uncheck auto restart.

The next time it restarts it might give you a clue with a BSOD.