So here is the deal with my custom built pc. The last thing I was doing on my pc before I started having this problem was burning videos onto DVD-Rs and surfing the net. The pc boots up the BIOS but every time right before Windows loads up it shuts down. I already replaced the ps and the same thing happens. I’ve disconnected all IDE drives and all cards while leaving just the primary hard drive and same thing. I tested each memory stick one by one and same thing. I even put in a new SATA with no windows on it just to see if it doesn’t shut down…same thing. There is no way I can run any diagnostic testing because the PC shuts down. I can’t even load Ubuntu/linux off a live CD because it will shut down. My mobo is Abit ip-95, nothing special but I don’t need much. Could it be a bad mobo? Any advice is appreciated. Thanks.