System only powers when 8 in is not connected.

Articxslack

Reputable
Apr 2, 2015
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I've made sure I have my standoffs installed correctly, the ram has been tried in all possible ways, the PSU is a 600w corsair that works in other systems, and my components are seated properly.

My issue: When the 24 pin, and 8 pin are installed, the pc turns on for a nano second. It shuts off quickly after hitting the power button, and refuses to turn back on unless I re-plug the psu from the wall and flip the switch again causing it to turn off quickly yet again. However, when I remove the 8 pin cpu power, the system stays on, fans spinning, CPU fan running, Hard drives spinning, and even my GPU spinning.

The system only stays on when I have the cpu power OUT, regardless of configuration

I have even tried removing the CPU and it still will start up for a micro second if the cpu-power is in.

I think my MOBO is dead. Can anyone second this?

The board is a MSI 970A-G46 AM3+
CPU - Fx-8350
Ram - 16gb of ballistix
PS - Corsair 600w

I am almost certain this is the motherboard. Any other ideas?