Question Buzzing noise coming from PC ?

[simor04]

Hello,
Im experiencing weird buzzing coming from PC. It's not the PSU (we ruled that out in pchelpforum), nor GPU. I think its coming from motherboard.

Anyone knows what it is or how to fix it?

CPU: AMD Ryzen 7 5700X
GPU: GTX 1050TI
RAM: 32GB Kingston
PSU: Seasonic Focus PX750
Fans: 1x NFF12 1x NFA12 2x Artic Bionix P120
OS: Windows 10

 

[Ralston18]

Update your post to include full system hardware specs and OS information.

Key is to locate the source of the buzzing.

Does the buzzing come and go or otherwise change in some manner with the fans and/or fan speeds?

Or change with temperature as the case warms up/cools down?

Use a long cardboard tube or rolled up sheet of paper to carefully listen "around" the motherboard.

Hold one end of the tube to your ear and aim the other end of the tube at the motherboard and its' components. Get someone to help guide the tube so you do not touch anything inside the case.

Could be just a loose screw, connector, or wire rattling with resonance perhaps. Could be a fan.

Find the source of the buzzing and, if possible, take a photograph or two and post the photographs here via imgur (www.imgur.com).

 

[simor04]

It does sound like its coming from around CPU.
(PSU is out of case for testing)

https://imgur.com/a/PbKQSmA

View: https://imgur.com/a/PbKQSmA

 

[DaleH]

It does sound like its coming from around CPU.
(PSU is out of case for testing)

https://imgur.com/a/PbKQSmA

View: https://imgur.com/a/PbKQSmA

I'd suspect an object like a fan. Try to stop the fan just long enough to see if the sound disappears.
DaleH

 

[simor04]

Hello, all is pointing towards VRM being the problem. Apparently its a common issue in asus boards.

 

[DaleH]

Hello, all is pointing towards VRM being the problem. Apparently its a common issue in asus boards.

I give up. What is a VRM?

 

[simor04]

"VRM stands for voltage regulator module. Some modern CPUs and GPU (aka graphics cards) use VRMs to control and lower the voltage (V) sent to these components in order to avoid exceeding their maximum voltage capabilities. "

 

[audettejr6]

I give up. What is a VRM?

A VRM is the voltage regulator module (or modules) on the motherboard. While faulty VRM's can cause annoying coil whine, I'd check the fans first like you suggested. It's easier to test for and a lot easier/cheaper to correct if that turns out to be the culprit.

OP, did you test the fans to see if the noise persisted? Is the buzzing consistent or does it change?

 

[simor04]

Yes, all and separately and the issue remains. I saw a thread somewhere from a guy having same issue, same noise from same place and it was the VRM.