i built a new a new computer today when i push power it all turns on but nothing shows up on the screen and the computer shuts off about 30 seconds after i push power please help
Open the box and recheck all connections as well as motherboard jumpers (if any) If it still fails, try one stick of memory, HD and video, nothing else.
disconnect all cables to drives. remove all cards except videocard. reseat the videocard & ram. make certain the cmos jumper is in default position according to motherboard manual.