Anyone else hear some kind of noise that sounds like a HORN sound when powering on the PS4 or putting it in standby mode? Please help.
That sounds normal to me. There's always a beep when you first turn on the console. I don't know about everyone elses but from the sound I hear on yours and mine it sounds the same. Look on youtube and you can even find videos of people powering on their console and you hear the same beep. I don't get any beep when I turn it off or go into standby.
Your console is fine. It beeps when the console turns on and then the other noise is the fan starting to spin.
It is not the hard drive. Its the fan.
Mine sounds like that too.
Dont worry about it. Its working fine.