PSU failure?

[Emrys TGAP]

Hey. I'm at my wits end. This PC build has been a nightmare. So then day of/night of the build everything worked great. All my components turned on, lit up, etc. I unplugged it, moved it under my desk, and left it there for a few days.

Today I went to plug it in since I finally got my monitor, and now nothing will turn on. At most I get a little white flicker on the motherboard, then nothing.

Is it the PSU that is dead now? I just bought it brand new.

For the record my parts are-

GPU -Nvidia GTX 3060 Ti (with RGB)
RAM- Corsair Vengeance 32GB (16x2) RGB
PSU- Corsair CX750 RGB 80 Bronze (fully modular)
Motherboard- GIGABYTE B550 AORUS PRO AC (possibly RGB??)
SSD- ADATA XPG 1TB
CPU- AMD Ryzen 5 5600G 6 Core 3.9Hz
Case- Enthoo Pro with a clear side

Please help. I'm seriously about to lose it

 

[Emrys TGAP]

Sorry I didn't mean to put the possibly RGB thing on the motherboard part just ignore that

 

[Emrys TGAP]

Second change- I reset the CMOS/ removed the motherboard battery. Then only the RAM RGB's turned on. Then I replaced the PSU, assuming it was faulty. Now I'm still having the same problem. Only my RAM turns on, nothing else, not even the PSU fans or the unit fans.

 

[Alex Glawion]

Try to reduce things that could be at fault. Take out all RAM except for one. Make sure it's in the correct slot. Check all your Power cables, 24pin, 4+4pin to the motherboard. Be sure you are using the dGPU and not the iGPU of the 5600g. Unplug all Case connectors from the motherboard and turn on the PC through the motherboard switch. Check that your CPU / Socket doesn't have any bent pins. Sorry for all your trouble, hope you get it sorted out!