Question Motherboard Flashes Once, Then Turns Off

Oct 14, 2019
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This is my first time building a pc so apologies if I missed a crucial step.
I’ve tried turning on the motherboard to my newly built pc, only for it to flash a single light blue light, and then power down. I can’t turn on the computer through the power button, and none of the components seem to turn on. At first I thought it was just a bad power supply, so I bought a Corsair CX750M to replace my Supernova G2. No luck.

I am using:
Ryzen 7 3700x
X570 Gigabyte Aurous Pro WIFI Motherboard
RTX 2080TI
32GB of DDR4 Ram at 3200mhz
3TB HDD, 500GB SSD, 120GB NVME SSD
Corsair CX750M
 

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