Help!!! Motherboard won't boot/post up

[rajivvijayraj1111]

So recently i bought a Gigabyte Ax-x370 gaming k3 motherboard and i got my evga 550w G3 psu and once i connected those together to see if the motherboard is good and it didn't post nor the fans didn't work. For a fact i know the psu works perfectly fine the psu fan works but once i connect the 24pin connector to the motherboard it doesn't do anything, the psu fans don't turn.
Im new to the pc building scene so im confused about this, did i get a DOA board?

 

[alexoiu]

"but once i connect the 24pin connector to the motherboard it doesn't do anything, the psu fans don't turn.'
Have you started the board via case power button/power pins on the motherboard?