Question no post and pc turn off and on

[Paschamamad]

Hi there,

recently i bought a new pc with this spec:
Gpu : Rx570 4Gb
Cpu : I3 9100f
Ram : 8Gb 2400 Kingston
MB : P310-D3
Psu : Silverstone 500W

when i assembled the pc and turned it on it works for 10s - 11s and turned off and again it starts to work and so on.... and
there was no display on the screen. i thought this is mb issue and i sent it for warranty when it came i tested and the problems still going on.
so i used a buzzer to find the problem and there it is:

View: https://vimeo.com/536937221


in this video you can hear beeps sound(sry for volume i dont know why the buzzer has low sound).

I appreciate if you can help me

 

[NightHawkRMX]

Try reseating ram

 

[Paschamamad]

Try reseating ram

I tried but still doesnt work.
Is this because of ram??(this boot looping and no display)
When i disconnect or when i put ram i get those beeps.