New PC build absolutely nothing happeneds when power is pressed

[Beaverrac]

Just finished building my first pc, everything seemed to be going smooth until I tried booting it up. When the power button is pressed nothing happens at all, no fans, no leds, no sounds.
Yes the power supply switch is on, I tried multiple power strips and multiple outlets. I am about 99.9% sure that mobo and CPU power cables are hooked up properly.

Build:
-gigabyte B250M-DS3H motherboard
-Intel 7700k processor
-Cooler master hyper 212 evo CPU cooler
- gigabyte GeForce gtx 1080 graphics card
-EVGA supernova nex650G power supply
-deepcool tesseract case
-Samsung 850 evo SSD
-16GB HyperX DDR4 ram

 

[M04D18]

Case cables are correctly connected in the motherboard?

 

[Flyfisherman]

1. Be careful of the ESD (Electrostatic Discharge) and try to use an ESD wrist strap attached to a non painted metal part of the chassis.
https://en.wikipedia.org/wiki/Electrostatic_discharge

https://chioszrobots.files.wordpress.com/2013/09/antistatic-wrist-chiosz-robots-3.jpg

2. Check that all memory sticks are properly seated in their slots.

3. Check also all connectors, graphics card and its power connectors, so everything is properly mounted.

If the memory's won't work, so doesn't the CPU. and you will not even get a picture on the screen.
Best regards from Sweden

 

[SkyNetRising]

When the power button is pressed nothing happens at all, no fans, no leds, no sounds.

Can you post photo of how everything is connected?
(top down view of the motherboard)

Yes - and check, if power button is connected correctly.

 

[Beaverrac]

Thanks for the feedback everyone, I ended up figuring out after a couple hours of trouble shooting. There was a cable touching the back of my motherboard, once I rerouted it everything booted up normally.