Why doesn’t my system not boot?

I recently bought a ram stick kingston 8 gb ddr4 2666 mhz cl19 , but when I put it in the gigabyte a320m-s2h motherboard and turned on the pc it didn’t “beep” and the screen went black. I wanted to combine it with an ADATA stick with the same specifications I had but the pc didn’t start even when I only used the new stick. What should I do considering that both slots work and the PC starts with the old stick?