New pc going on and off every 2 seconds with fluctuating orange light in mobo

rohanpuri.it

Prominent
Feb 11, 2018
1
0
510
Hi guys,

Need help! I just assembled my new pc, but as i start it up, the fans start and stop every 2-3 seconds with a fluctuating orange light in the mobo. It wont boot.
My config is
i3 7400
Gigabyte B250M-DS3H
Hyperx 8gb 2400
Psu - old intex 500w