Hello, I have just finished building my pc: http://pcpartpicker.com/p/JsjhXL But it just didn't boot up when everything was in. So i tried to launch it with only a ram + cpu + cpu cooler. it worked and the bios was showed. So i connected a usb keyboard to use it but then there was a bang under the cpu socket+ a sparkle+ a smell of burnt things. Help please I'm very confused and scared. The pc rebooted after the accident but i shut it off immediatly.