Asrock AB350 PRO4 + AMD RYZEN 5 1600 WITHOUT DEDICATED GRAPHIC CARD, give 5 beep.

Aug 4, 2018
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I just bought Asrock AB350 PRO4 & paired with AMD RYZEN 5 1600, with 8 gb ram (2x4 gb), but no dedicated graphic card, but when i power on the cpu, it gives me 5 beeps and blank screen, no POST display.

What's the problem and what should i do?