Question my build starts but doesnt show anything on screen

Jun 11, 2019
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i start up my pc and all the fans start and also the red rgb works too but after a few seconds i hear one long beep and two short beeps. i have looked online and i have seen that i need a vga cable the ram is bad or incompatible or the graphics card is bad or damaged or the motherboard is damaged or bad
my motherboard is the asus prime b450 plus and my graphics card is the asus dual gtx1060 6g.