Question 3 long beep on B450m steel legend

AloyDeo

Prominent
Apr 4, 2019
22
0
510
i got mother board from asrock b450m steel legend, with ryzen 5 2400g, coolermaster ML120L, vgen tsunami 2x4gb 3000 (i set the speed on bios at 2666), Rog RX 570 4gb, SSD adn HDD, and 4 case fan including 3 blue fan with 1 RGB fan from ml120l, and deepcool DN650w psu. when i boot sometimes it takes 3 long beep, eventhough its booting, when i run PUBG, its suddenly bluescreen exactly at lobby.