Question GPU won't turn on and nothing is displaying on monitors

[Vylora]

Motherboard- ASUS Prime X470-Pro
PSU- Seasonic Focus GX-550, 550W
GPU- MSI Radeon RX 570 8GB 256-Bit
Processor- AMD Ryzen 5 3600 6-Core
CPU Cooler- Cooler Master Hyper 212 EVO

So I installed new parts in my PC a few months ago and it has been working as it should be since then. I purchased a fan splitter to install because my case has more fans than my motherboard has slots. I installed that and the CPU cooler listed above. After install, my GPU wasn't working, the fans wouldn't spin and my monitor would show no display no matter if I used GPU or motherboard ports.

I removed the fan splitter and switched back to the other CPU cooler but I'm still running into this problem. I've also moved the GPU to a different spot and have made sure it's seated properly multiple times.

I also never moved the CPU when changing fans so the pins should not be bent.

If anyone has any idea what may be wrong or what I could check next, I would greatly appreciate it. Thanks!

 

[rgd1101]

did you redo the thermal paste when you change the cooler?
is a modular psu did you check the psu end on the cable?

 

[Vylora]

did you redo the thermal paste when you change the cooler?
is a modular psu did you check the psu end on the cable?

Yes, I did redo the thermal paste, but I just unhooked everything and hooked it all up again and it works fine now. Something must not have snapped in properly the first several times I checked.