Pc quite simply will not boot. It is a new 2600k with an Asus p8p67 mobo. There is power getting to the pc but no power to the mouse and keyboard. The monitor receives no signal from the gpu also. The onboard sb_pw remains (or is on green) I think the dram led flashe red once. Throughout the week the pc has switched itself off and rebooted once or twice, Tonight it was working fine. I went downstairs to get a cup of coffee and returned to the situation mentioned above. Any help would be appreciated. Thank you