short crackling/buzzing sound when I start up my pc

[Mighty Didi]

Hi,

 

I recently upgraded my mb and cpu, together with a clean install of windows 10 home 64-bit. Everything works like it should except for a short crackling/buzzing sound when I start up my pc.

Some more details:

- the noise last about half a second

- it happens between when i see the windows logo appear and the windows lock screen

- it does not happen when I restart the pc

 

Hardware:

- Intel i7 9700k

- MSI MEG Z390 ACE

- 16 GB DDR4 RAM Kingston

- ASUS GTX 1070 ROG Strix OC8

- Samsung 960 EVO M.2 250GB

 

Installed drivers:

- bios: 7B12v15

- chipset: 10.1.17968.8131

- irst: 17.2.6.1027

- intel me: 1912.12.0.1246

- intel wifi: 21.10.1.0

- killer network: 2.0.1175

- realtek audio: 6.0.1.8703

- asmedia usb: 1.16.54.1

- bt driver: 21.10.1.1

 

Troubleshooting I already tried:

- other 3.5mm audio cable

- other speakers

- unplugged my speakers and put sound through my monitor, then the noise doesn't happen

 

if you need to know more, just ask ;)

[Bishop Crane]

I have a similar thing, when I power on my speaker without powering on audio interface the speakers buzz.

 

This is because the amplifier in the speakers are basically amplifying random electron movement in the wires, which presents itself as a buzzing.

 

What it sounds like is happening is that during startup the analogue output (3.5 jack) is being reset at some point.

Its nothing to worry about unless you find it annoying, but the only real thing you can do about it is to switch to a digital output (HDMI to the monitor like you tried) or Digital Optical if your sound card supports it.