I have a PC I built 4 months ago. Haven't had any issues until now. A week and a half ago my PC turned off while I was playing a game. No reason or warning. It would not turn back on (no lights, beeps, etc.). I suspected power supply issue an old power supply into the motherboard just to see if it would turn on and it started the boot up (all normal lights, fans, everything). After this I warrantied the power supply (EVGA Supernova 750 G2). The new one came in and I plugged it in but......nothing. No lights, fans, beeps. I've tried unplugging everything but the mobo and CPU cables but still nothing. Leads me to believe it may be a MOBO issue. I don't have other parts on had to swap out and test different things so I need help trying to narrow down the issue. All thermals were within safe boundaries when the PC shutdown initially.
Specs are:
Intel 6700k
Gigabyte Z170X-Gaming 5
16GB Corsair LPX RAM
XFX Radeon HD7850 -this was about to get an upgrade but then the current issue happened
EK Predator 360