Here's what i am encountering atm. Initially, the power cable of my system unit is plugged into an extension chord (a) which is directly connected to the wall socket. suddenly my pc shuts without anysigns of problems, like it just literally went dead. So i tried to check if the power cable is just loose or something, but it isn't. tried switching it to the other socket and still it wont work, also tried plugging it into the wall socket but it didnt work at all. So i got another extension chord (b) to see if it can work, i plug it into extension chord (b) and have it connected into a different wall socket and it worked. I was wondering what could be the problem here. but now extension b doesnt work anymore *my pc went dead again, i tried pluggin it into another wall socket and it worked. So is the problem about the processor why it wont start or the power supply? But i think its the power supply, but let me know what you guys think. Thanks!