When I attempt to turn on my newly built custom computer, it powers on for 5 seconds then turns off again. The only happens when I have the ATX CPU power cable connected. When this cable is removed and the CPU isn’t powered, the motherboard powers on but doesn’t do anything.
- CPU: Intel Corp i5 7400
- GCard (the same with or without the GPU): Asus NVIDIA GTX 1050 Ti
- RAM: 16 GB (2x8)
- Motherboard: Gigabyte Z390M Gaming
This is not overheating, as the CPU doesn’t even seem to turn on!