[SOLVED] 1st build, no POST, red LED pulse

[Josh4507]

B365M Phantom Gaming 4 MB
Intel i7-8700 3.2 GHz 6-core LGA 1151
Corsair DDR4 2x8GB 2666 MHz Vengeance RGB Pro RAM (Connected to A2 and B2)
EVGA - 600W ATX 12v/EPS 12v 80 plus power supply

CPU fan is connected to MB
HDMI connected to monitor
USB powered keyboard
20+4 power connected
4+4 power connected

When we switch on the PSU, LEDs on the bottom of the MB slowly pulse red, keyboard gets power, CPU fan does not spin, POST lights are all off.

We’ve removed CPU and RAM twice, tried one RAM stick, shorted CMOS reset pins for 5 seconds but did not remove battery.

Thoughts?

 

[OneApples]

Getting no signal at all from a PC is a bad sign that almost always points towards the RAM, CPU or Motherboard.
Try only using a single ram stick. Remove the CMOS Battery for 5-10 minutes while all power plugs are disconnected.
If you have spare Thermal paste, remove the cpu and check if there is any bent or broken pins in the motherboard socket.
Good luck.

 

[Josh4507]

Getting no signal at all from a PC is a bad sign that almost always points towards the RAM, CPU or Motherboard.
Try only using a single ram stick. Remove the CMOS Battery for 5-10 minutes while all power plugs are disconnected.
If you have spare Thermal paste, remove the cpu and check if there is any bent or broken pins in the motherboard socket.
Good luck.

I should add there is no case involved here. I’m just powering the PSU then flipping it on. Thinking I might need to hook the MB to a case then switch it on?

 

[GorillaMonsoon]

I should add there is no case involved here. I’m just powering the PSU then flipping it on. Thinking I might need to hook the MB to a case then switch it on?

If you can locate the power pins on the mobo you can short them for a sec, it is exactly what happens when you press the power button on a case.

 

[Josh4507]

If you can locate the power pins on the mobo you can short them for a sec, it is exactly what happens when you press the power button on a case.

Good news! We’ve got it going after shorting the PWR and GND pins. Thanks all!