having trouble getting this to work. [bad USB cable!]

[TCMOrangeJoe]

I'm currently working on a retro pie project, and i just really want this to work. ive done everything correctly from what i can tell. i have the newest retro pie img on the sd card, the atx is soldered correctly, hooked up to the correct gpio pins and everything, but when i press the button i have it hooked up to, both atx raspi leds light up, and no power goes to the actual raspberry pi. what could i be doing wrong?
seriously getting discouraged.

[Felix]

Could I possibly see a photo of the whole setup/wiring and what is attached to the Pi?
Power ON should always happen regardless if the GPIO is hooked up. What Pi version is this?

[TCMOrangeJoe]

Okay, now i'm super frustrated. It's working. it was a faulty usb cable. the thing is, i had hooked the atx raspi up first, tested it, and it worked; so i moved on to the next part of the project. the other parts were a whole other headache, but i got them working. after getting everything working, i guess the crappy usb cable went out on me. I'll post the final product when i'm done getting it all together. thanks

tl;dr
faulty usb cable wasted 2 days of my time

[Felix]

Thanks for the update.
Having even a basic multimeter can go a long way sometimes.