Question motherboard won't boot at home but booted fine at repair shop

[WonderMIlk]

specs:
mobo: Asus proart X670E creator wifi
CPU: AMD ry,zen 9 7900X
GPU: Nvidia 4070 ti

So I recently finished building a new computer. it was booting just fine and the only issue i was having was something to do with my GPU drivers crashing

I left the computer alone for a bit as I was trying to think about what I could do to troubleshoot, but when I can back to try and update my mobo bios, I was no longer able to boot, and my motherboard would just give a yellow dram error.

the ram was brand new, but I tried buying a new set to see if replacing the ram would fix the issue but after trying all 4 sticks individually no dice.

i then tried replacing the cpu, and unfortunately, that didn't work either

hell, I even tried replacing the motherboard to see if that was the issue and that didn't fix my issue either. I now have enough parts that I can start two PCs simultaneously and receive the same error on both motherboards

I finally decided to throw in the towel and try taking it into an repair shop around me , and strangely enough they do not receive any error, and the computer boots just fine for them. After taking the computer home and trying every outlet in the house to turn the computer on with, I can confirm that when I try turning the computer on at my house I am receiving the exact same error. I have no idea what to do and I plan on going to a different computer shop tomorrow

 

[rgd1101]

brand and model of the psu?
test without the 4070 ti?

 

[WonderMIlk]

brand and model of the psu?
test without the 4070 ti?

Corsair RM750e fully modular
and yea, same issue without graphics card in

also tried using a different power supply at one point

 

[stonecarver]

Very strange both builds do the same exact error.

If your going to another repair shop take your whole set-up, mouse , keyboard . monitor your HDMI or DP cable hell even your power cables. If it boots right up at shop and can repeatedly that will tell you something.

Some shops might roll there eyes at you for bringing more than tower but explain that as a whole with mouse, keyboard, monitor to power cables you error out.