[SOLVED] trouble shooting help

[Sluggers]

I recently just bought all my stuff for my computer and built a computer, and it all was working for around 3 weeks. Until it decided to shut off and not display any power. i have tested the power supply and it wasnt the issue. I also reset cmos because i had some high ish overclocks, but that didn't work either, i don't have the resources available either so i cant go out and buy anything, if i could get some help that would be awesome because im upset that a computer i just built died on me
Specs:
CPU: Ryzen 5 3600
Cooler: Noctua NH-D15
MOBO:MSI b450 tomahawk MAX
RAM: Corsair LPX 3000mhz
SSD: silicon power a80
GPU: RTX 2060 SUPER EVGA SC BLACK
PSU: Corsair 750RM Semi modular, 80 + gold
Case: NZXT h510
i appreciate any kind of help

 

[kwikgta]

Try this: 1) Turn the psu rocker switch to off. 2) Pull the cmos battery out. 3) Push the power button in and hold it there for 10 seconds. 4) Wait 30 minutes. 5) re install the cmos battery. 5) Turn the rocker switch back to on and try to start your pc.

 

[Sluggers]

i have tried this before and it didnt work, acts as if i havent even hit power, nothing turns on

 

[kwikgta]

i have tried this before and it didnt work, acts as if i havent even hit power, nothing turns on

Well then it's either a dead psu or a dead motherboard.

 

[Sluggers]

Well then it's either a dead psu or a dead motherboard.

alright i guess i will send the motherboard and the psu back, thank you for your help