I just recently built my PC, and the first time I tried to start it up it didn't work. I had 2 red leds light up on the motherboard (1 and 4 on the manual), the CPU 12v error LED and 5VSB. I tested the psu with the tester it came with, and it works fine. Afterwards, I took everything apart and reseated the CPU, tested with only the cpu cable and 24 pin cable plugged into the psu and it worked. I added cables in one by one and tested and they all ended up working, I could start up my pc and was able to check the BIOS settings. But after I put my case back together, I tried to boot again and it wouldn't even turn on, same LEDs lit up as before. Any advice?
Specs:
EVGA z370 Classified K
Intel Core i7-8700k 6 core 3.7ghz
GSkill TridentZ RGB series 16gb (2 x 8)
EVGA GeForce GTX 1080 Ti ftw3
EVGA D 76 tower
EVGA Supernova 850w gold power supply
evga clc 240 liquid/water cooler