Hades Canyon HVK coil whine at idle.

[JustAThousand]

I am having loud coil whine chirping type noise coming from the unit especially at idle. the noise changes pitch depending on whats happening on the screen. Its very loud and distracting. Even in sleep mode the coil whine continues. Only hibernate or full shutdown stops the noise. I notice that this noise is not present while browsing the bios.

This is not a fan noise since the fans are idling at very low rpm.

My unit has manufacturing date July 2019

If anyone has an unit thats completely whine-free even at idle, please share the manufacturing date.

[LeonWaksman]

I've NUC8i7HVK which works completely noiseless. The cooling blowers can be hardly heard under heavy loads. In idle or during internet browsing I can't hear it at all. It is the most quiet NUC I have. The manufacturing date (located on the bottom plate) is 08/2018.

I'm attaching image showing blowers installed in my NUC.

Leon

[JustAThousand]

thats very interesting, thank you. I believe the noise is coming from the alpha omega semiconductor mosfets near the gpu. From my tests i can change the pitch of the coil whine by changing the frequency/voltage of the gpu, and i noticed the unit has to be drawing at least 15 watts on the GPU to stop the coil whine when idling. anything between 6 watts to 15 watts on the GPU produces a loud coil whine at idle. Normally the gpu draws 6 watts at idle. when there is a load, then the coil whine also becomes quiet.

this is the pcb and vrm analysis:

https://www.youtube.com/watch?v=oMhlrkKKknQ

[LeonWaksman]

1. I can't help you more.
2.  If you want more help from Intel engineer, please download the Intel System Support Utility (SSU). Run the SSU scan and save the results. The .txt file with the results please attach to your post (use "paperclip", below the left bottom corner).

Leon

[Esteban_D_Intel]

Hello JutAThousand,

Thank you for posting on the Intel® communities.   

To better assist you please provide the report requested by LWAKSMAN so we can further investigate this behavior.

Intel® SSU Download link  

Esteban D.  

Intel Technical Support Technician   

[Esteban_D_Intel]

Hello JutAThousand,

I would like to provide an update on this thread.

Were you able to check our previous post? If so I would appreciate it if you could provide the information requested.

Also, please try one more time using the BIOS in the default configuration. To do so please check the following steps:

1. Press F2 when prompted during boot to enter BIOS Setup.
2. Press F9 to set all BIOS options to default values.
3. Press F10 to save and exit BIOS Setup.

Please check the results with me.

Esteban D. 

Intel Technical Support Technician  

[Esteban_D_Intel]

Were you able to check the previous post?  

Let me know if you need more assistance.  

Esteban D. 

Intel Technical Support Technician  

[Ronny_G_Intel]

Hi JutAThousand,

We believe this issue may be generated by the power adapter, can you please reach out to our Technical Support Service via Phone or Chat to arrange a warranty replacement?

Here is our "contact Intel" information: https://www.intel.com/content/www/us/en/support/contact-support.html#@8 and please make reference to case 4705302.

Regards,

Ronny G