Loud Continuous BUZZ

[TonyM10]

My HP 510-p026 desktop has developed a constant loud buzz (not a humming sound!).  Of course, it's now out of warranty.

The goofy part is that the buzzing continues even if I unplug everything including the POWER CORD. I pulled the side panel and with it running, stopped both fans with a pencil eraser, then disconnected the HD and then tried the CD drive. The buzz didn't stop.  The only thing I couldn't isolate was the power unit, but I figured with no cord connected, why would that keep buzzing?

So far, it hasn't affected the running of the system, but the sound is enough to drive one batty. My wife can hear it when she's watching TV in the family room 60 feet away from my office. 

Anyone have a clue?

[Grzwacz]

Greetings,

Welcome to the forum.

I am not a HP employee

Buzzing when the PC has no AC power is very strange.

Failing fans, or loose connections can cause component buzzing but the PC would have to be running to hear this.

Take the PC to a local PC tech for a diagnosis.

I have never experienced what you are hearing.

Regards

[TonyM10]

Thanks, but that wasn't much help since I knew all that already. LOL

[Grzwacz]

Hi,

You're very welcome.

Regards

[Grzwacz]

Hi,

Why waste other forum members time when you have the problem under control?

Regards

[TonyM10 · Accepted solution]

Problem not only under control but also solved.