Windows 10: Left pc on, woke up to a blank display and loud buzzing sound from speakers.

As the title suggests, I left my Windows 11 pro PC on overnight, and awoke to a buzzing sound. However, it was coming from my monitor as I leave it turned on, the one I leave on it my secondary one. I have not turned my pc back on yet, because I want a second opinion. I have searched around, and found this is either a component failure or fried motherboard.Please help soon!

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PC freezes and gives out loud buzzing sound in earphones

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Computer freezes with loud buzzing sound from speakers

 

Windows 10 freezing with loud buzzing sound

i'm having a lot of problems on my Windows 10 machine and to be honest i'm giving up on it, it used to run games well but now it crashes with a loud buzzing sound even in games that it used to run flawlessly, any help will be appreciated since no one i know has wanted or cared to help me, i've tried updating drivers, windows memory check, updating motherboard drivers, checking drive health and none proved effective, even clean installs of windows won't help, what do i do?
list of components:

 

Quiet Speakers with Insane Buzzing Sound

Connected my stereo system to my desktop with a 3.5mm jack but they have an extremely loud buzz as soon as theyre plugged in and the sound is barely audible at max volume (maxed in the stereo and pc).

Even though I put the speakers between a monitor, desktop and modem, i dont think that this is what is causing the buzzing because it disappears when I turn on the radio.

The sound is also very quiet in comparison to the buzzing.

The buzzing can still be faintly heard when the 3.5mm is unplugged too.

Is there any way to internally fix this. Thank you <3