Motherboard not detecting any GPU's after power bump

[Lasagah]

So I had just finished building my new PC I've built a couple of PC's before and they've all gone just fine just like this one at first. After installing windows and all my programs I tried to launch a game (Warframe) the game launched just fine I signed in and just after loading into my orbiter my pc hard crashed as if it had the power cut then it rebooted itself and mid startup it died again so I turned off the PSU and unplugged the system I found out the hard way that the outlet I used was faulty so I plugged into a unused circuit in my house and now my pc won't post the motherboard LED stays on white indicating a GPU error. All the fans and LEDs light up including GPU fans. I've tried booting without a GPU as I've seen other people online able to fix it that way but no luck. I've tried several different GPUs in different PCIe slots still unable to boot I've cleared the CMOS both by shorting the pins and taking the battery out. Everything else that was plugged into that outlet is fine: monitors and my switch dock.

 

Here's my pc info.

 

Ryzen 5 3600 (stock cooler)

Asus TUF GAMING X570 PLUS Wi-Fi (haven't updated bios) (latest drivers from Armory crate software)

Gigabyte RTX 2070 (latest Nvidia driver)

G.Skill Trident Z RGB 16GB 3600Mhz

NZXT H510i

Crucial P1 500GB(Boot),1TB

Corsair RM650x

Edited June 19, 2020 by Lasagah
Grammar and updated info

[ItsVeriicalz]

If you haven't already, try reseating the RAM, or only using one stick. It sounds unlikely but sometimes the RAM caches main data. Reseating / removing the RAM will remove potential cache. If this doesn't work, make sure the GPU is working at a potential test bench, or using the motherboards onboard video outlet. If nothing happens, or you've tried this already, let me know

[Lasagah]

1 hour ago, ItsVeriicalz said:

If you haven't already, try reseating the RAM, or only using one stick. It sounds unlikely but sometimes the RAM caches main data. Reseating / removing the RAM will remove potential cache. If this doesn't work, make sure the GPU is working at a potential test bench, or using the motherboards onboard video outlet. If nothing happens, or you've tried this already, let me know

Just tried reseating the RAM and booting with only one stick or the other stick still getting the white LED post code. Can confirm this GPU works as I've tested it on another PC and I've tried a different GPU in this PC. Thanks for the tip on the RAM would have never guessed that.

[Lasagah]

15 hours ago, Lasagah said:

Just tried reseating the RAM and booting with only one stick or the other stick still getting the white LED post code. Can confirm this GPU works as I've tested it on another PC and I've tried a different GPU in this PC. Thanks for the tip on the RAM would have never guessed that.

The GPU originally intended for this build a gigabyte RTX 2070 arrived today that GPU gave me the exact same results I also swapped out the PSU still no luck definately a Motherboard issue

[Lasagah]

UPDATE: I have sent the motherboard in for an RMA and have received a brand new board from ASUS under warranty. The first time booting I got a post screen but the pc froze on the post screen, after 5 mins I forced shutdown by holding the power button since then I have gotten the exact same white VGA led error I've test almost every component of this pc in another pc and each component works perfectly fine the only component I haven't swapped out yet is the CPU due to the fact that the only other Ryzen 3000 CPU in the house is in my dads main PC (he has the same motherboard and a 3700x instead of my 3600) so I can't test it for a week or so. will update once I'm able to test another CPU in the motherboard.