System will not boot

[foodmarket]

Hello, I am an experienced PC builder and with my most recent build it refuses to boot. When I power on the PSU the power button on the case has its LED light up and the LED in the back of the case on the Ethernet slot lights up as well, no LEDs on the motherboard though. I tried shorting the power on pins on the motherboard and there was no success. I have also swapped out the PSU with another and the same issue persisted. I have tried booting with no GPU, I have tried with 1 stick of RAM, and Two sticks of RAM and neither worked. The only thing I have not done is resat he CPU (as I believe there is no mistake and it would take a bit to reseat and clean up and all that, but I will do it if someone request). Please any advice is greatly appreciated.

Specs:
Case: NZXT S340
MB: MSI Z270 Gaming Pro
GPU: MSI RX 480 4GB
CPU: i5 7600k
Cooler: 212 Evo
Storage: 3tb Seagate and 250gb 850 evo
RAM: 16gb Corsair LP
PSU: 650w corsair M

Also a internal wireless network card

 

[Paul NZ]

Did you connect the AtX12v, cpu fan, and 24 pin. And install the standoffs?

 

[foodmarket]

Did you connect the AtX12v, cpu fan, and 24 pin. And install the standoffs?

standoffs are preinstalled in the nzxt s340, and yes all power connectors are properly connected. As well as cpu fan header connected

 

[foodmarket]

bump

 

[foodmarket]

bump

 

[LowlySkeleton]

Have you tried all the video ports (DVI, HDMI)? I always start there.

If you have a set DDR4 from a working system, try using a single stick of those and test out all the different slots. You could also try out the newer 16gb Corsair LP on a working system. This way you can tell if ram is the issue.

If its not the ram, I would try re-seating everything again. Its worth a shot.

And just in case, maybe double-check the front panel header to see if everything is plugged in correctly. You could also try to plug in only the header for the power button and see if that works.

If it still doesn't work and its not the ram...might be a DOA motherboard or cpu(more often then not, it is the motherboard).

 

[foodmarket]

Have you tried all the video ports (DVI, HDMI)? I always start there.

If you have a set DDR4 from a working system, try using a single stick of those and test out all the different slots. You could also try out the newer 16gb Corsair LP on a working system. This way you can tell if ram is the issue.

If its not the ram, I would try re-seating everything again. Its worth a shot.

And just in case, maybe double-check the front panel header to see if everything is plugged in correctly. You could also try to plug in only the header for the power button and see if that works.

If it still doesn't work and its not the ram...might be a DOA motherboard or cpu(more often then not, it is the motherboard).

Thank you for the pointers, I plan on trying them all tomorrow and ill see if I can get back to you with results. Worst case scenario I'm assuming I send back the motherboard and get a new one but lets see if we can avoid that 😛