I recently bought a Pavilion 690-0020, Ryzen 5 2400G, with RX580 GPU. The specs say it has 8bg of DDR4-2666 RAM. I upgraded to 2, 8gb DDR4-3000. When I booted up the PC, I noticed that it was only recognizing the RAM at 2133. I thought maybe there was an issue with the sticks I got, so I threw the stock stick back in. It said DDR4-2666 on the label, yet the PC shows it at 2133 as well. Any ideas??