Very recently, there was a short and all 3 of my computers went off. 2 of my other computers were able to turn back on. It's not the power supply, so it's the motherboard...this is what I think. Keyboard and mouse receive power, computer doesn't turn on. Tried different volt settings, nothing. It can't be the HD, because the damn tower should still powerup and the fan on the powersupply should be running. Am I right in thinking that it is a motherboard and problem? What solutions do I have? Could it be something on the motherboard that needs to be replaced instead of the whole thing? I am using an ECS K7VMM+ mobo with an XP2000+ chip. Yeah, you can tell me ECS makes a [-peep-] board, but it was cheap. Any feedback would be appreciated. Thanks in advance.