Just bought new A320M-DGS with Ryzen 5 1400 (Don't say anything about B350, i know), and simple Kingston 8 GB DDR4 (If more accurately - Kingston DDR4-2400 8192MB PC4-19200 KVR24N17S8/8). Mobo supports up to 3200 (OC). Tried to set 2666 + 1.350 voltage, bootloop after exit from bios. Tried 2666 + 1.350 and changed timings to 18-18-18-40, bootloop, same with even 20-20-20-42. Stock bios settings, except disabled CSM (to enter bios in uefi mode).