PS4 beeps three times when turning on, then turns off

Hi ifixit!

Recently I had a mishap with my Ps4 original, where it fell a small distance of a desk onto carpet. I stressed out and plugged it in only for it to turn it on and nothing would happen apart from the blue light blinking. I then took it apart and disconnected everything and made sure nothing was broken, it seemed like it was not. (While I was there I cleaned all the dust out) then when I attempted turning it on the next time(s), the blue light would come on and the fan would kick in but then it would promptly beep 3 (three) times and turn off.

Can anyone help?

Thanks!