Hi, recently my computer on and then off in a cycle until I switch off the power supply. I have not pressed the power button yet only on the power supply. The problem happens interminently. Then finally, it won't start. I sent it to a repair shop to replace the PSU and it works fine for 1 and half day. Now the problem comes back again. I don't think it is overheating, the problem only happen when it is cool (after shut down a few hours).
My computer is not dusty, I cleaned it 4 times a year especially the cpu fan, exhaust fan and the front panel. My computer is 5 year old and it has not have any major break down before. My pc is a Dell computer, I have use it's diagnostic program to diagnose it. The program scan cables, cpu, hard disk, video card, ram, cd rom and hard disk. It didn't detect anything. I even scan the hard disk for system errors and bad sector also no problem. I scan the PC for virus as well. Can somebody help me.
My computer is not dusty, I cleaned it 4 times a year especially the cpu fan, exhaust fan and the front panel. My computer is 5 year old and it has not have any major break down before. My pc is a Dell computer, I have use it's diagnostic program to diagnose it. The program scan cables, cpu, hard disk, video card, ram, cd rom and hard disk. It didn't detect anything. I even scan the hard disk for system errors and bad sector also no problem. I scan the PC for virus as well. Can somebody help me.
