Question Is my motherboard DOA?

[Its_Spelt_Fishes]

So I’ve connected everything up outside of the case to test if my new build will post to bios.

When I switch the power supply on the motherboard’s LEDs flash once. When I try to jump the motherboard by connecting the power switch + and - pins nothing happens.

No movement from the CPU or GPU fans. The board doesn't have diagnostic LEDs.

The M.2 ssd is connected but the SATA SSD is not.

Any help/advice would be greatly appreciated. I should have a volt meter tomorrow to test it if that helps.

Build pics:

https://imgur.com/a/M6Eg5gC

View: https://imgur.com/gallery/M6Eg5gC


PCPartPicker Part List

Type|Item|Price
:----|:----|:----
CPU | AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor |-
CPU Cooler | be quiet! Dark Rock 4 CPU Cooler | Purchased For €75.30
Motherboard | Gigabyte X570 AORUS ELITE ATX AM4 Motherboard | $199.00 @ B&H
Memory | G.Skill Ripjaws V Series 32 GB (2 x 16 GB) DDR4-3200 Memory |-
Storage | Samsung 860 Evo 1 TB 2.5" Solid State Drive | Purchased For $0.00
Storage | ADATA XPG SX8200 Pro 1 TB M.2-2280 NVME Solid State Drive | Purchased For €161.06
Video Card | MSI GeForce RTX 2070 SUPER 8 GB GAMING X TRIO Video Card | $539.99 @ Amazon
Case | be quiet! Silent Base 801 ATX Mid Tower Case | Purchased For €125.45
Power Supply | Corsair RMx (2018) 750 W 80+ Gold Certified Fully Modular ATX Power Supply | Purchased For €116.69
| Prices include shipping, taxes, rebates, and discounts |
| Total | $738.99
| Generated by PCPartPicker 2019-09-17 17:57 EDT-0400 |

 

[Phaaze88]

The mobo is likely dead. Although, I've only had that happen once.
I'd put everything together, turned the psu on, the mobo leds flickered on for like a second, and nothing.
Stripped the build down - barebones, turned the psu on again, mobo flickers again, then nothing.
Got the mobo replaced, and everything was fine after that.