beeps

Built a system last night for the step daughter and was confronted with 11 beeps and no display. All the fans,lighting,gpu where moving , I reseated the cpu and tried reseating ram sticks and trying one at a time and different slots. Checked the cabling as it should be. What else can it be...

Hi I built a new system over the weekend (Ryzen 7 3700X, X570 Aorus Elite, Corsair CMK16GX4M2B3200C16 Vengeance LPX 16 GB (2 x 8 GB) DDR4 3200 MHz). Having booted it up, it is failing the POST check. I get a 3 quick beeps, a pause and then another 3 quick beeps. I have not been able to find...