i have been facing this problem for a while now.The problem is that my computer while doing random things on it like surfing internet and watching movies shuts down like some one pulled the plug and then it restarts it self.
My pc specs are
GPU: GTX 670
PSU: OCZ zT 750W
Motherboard: Intel® Desktop Board DH77KC
RAM: 8 GB
Processor: intel core I 5 3570k
your help would be greatly appreciated!