MSI Z97 Gaming 5 Motherboard will not boot. Computer comes on for one second, lights, fans and all. Then shuts down. Checked all connections. Thinking it was the PSU, TX650 Corsair, disconnected all non essentials and tried to reboot. Same result. One second and shut down. Checked RAM for seating and switched out all sticks, no results. Externalized Mobo to check for a short against the case. Mobo boots one second and shuts down. Mobo was just purchased and is refurbished. The PSU works fine on old computer with 3 hdds and Graphics card.
Any Ideas Guys ???