Whenever I plug in the power cable to the CPU connector, the PC only stays on for a second and then cuts off. When I don’t use the CPU connector, it works fine, except for not connecting to my monitor through HDMI. This is concerning and I haven’t been able to fix this or find any information, because all of my parts are brand new, minus the CPU itself. I’ve got no money left to put towards this, any help is greatly appreciated. Thanks.