computer turned off by itself. No picture on monitor
I just got back a computer that I assembled for my friend half a year ago. At that time, his motherboard went bad. So, I just replaced a new ASROCK motherboard that has most components build-in. (VGA, LAN, Sound) It was the last motherboard brand/model I could find in the market at that time since it's for Pentium 4 Socket 478. (I usually goes for Intel chipset after I found a lot of problem when working with SiS or VIA chipset.) All work well until a couple days ago. I got a call from my friend said that the computer shut down by itself twice. Later on, he tried to turn on the computer.