Fractal Design Case
Corsair 650 watt PSU
Evga GTX 550ti video card
i7 sandy bridge, stock heat sink/fan
I built this computer about 2 years ago and have had 0 problems with it. About 1-2 months ago I turned it off and when I try to power on, it did nothing. I press button several times and nothing.
Check out ok:
PSU with tester OK, I dont know how to test the motherboard.
Checked all connections by completely disconnecting every cable/connector, blow out with air can, and reconnect carefully.
APC ups is running ok, checked all outlets with monitor and lamp, all ok
replaced PC power cable, ok
So after trying all these things, I was on my laptop and suddenly, the computer turns on by itself and boots to operating system normally. wtf? I logged in and everything runs normally. I shut the computer down and press power button to test and it powers on ok.... Weeks pass and I turn computer off again and the same exact thing happens, wont turn on at all until i give up and Im doing something else and out of the blue, it will turn on by itself again. Just happend a couple hours ago again, it turn on by itself and I'm on it right now.
It will not turn off on it's own or anything, once its powered on, it runs like a champ. Also, there is not motherboard lights when trying to turn on. its just dead.....