Dell vostro 5490 making static noise when plugged in

Hi, did u manage to get it fixed? i just got my Vostro 5490 today and is facing similar issues. Contacted support they told me to update drivers but it doesn't fix the issues. Mine is i had noises even with or without power plugged in.

I have exactly the same problem. I was looking for a solution and i came across to you.

Sorry for the late respond.,

I did have contact with support though the phone, he said maybe you should try charging on a wall plug that has a "earth contact plug" don't know what you call it in English. It's a wall plug with the brown thingies, so when you power leaks it gets redirected to the ground. I tried that but didn't help aswell. So he said we would need your laptop and check it ourselves and said he would get back ik contact with me. I didn't hear anything and didn't have the time to call again because of school.

I will try to call again asap and let you guys know!

Hi there,

Same issue here... Did you get a response from them?

Thank you,

Rafael

Same problem here.  Static (almost a sizzling noise) is much less when not plugged in to power (on big grounded power bar) but not totally gone.  Literally straight out of the box today.  The sound is loudest when close to the keyboard at the top left up near where the power cable plugs in - the sound appears to be coming from inside.  Is it the battery?  Any solutions?  Thanks.

Hi, I am currently working on this and will share an update once I have more details.

Thanks for the videos Rafael we will check on this and get back to you. It might take some time due to holidays request you to allow us time till 27th if fine with you?^PC

I have been going back and forward with them over private messages, so far just a few notes and some tests they asked me to do, but no hint as to why this is happening at all.

I fear they will also want to look at my laptop but it would be very hard for me to let them have it and be without a computer right now, so I hope they are able to figure out the issue and come up with a fix without having to go through that.

Noticed the same problem with my brand new Vostro 5490 and Google led me here. I have exactly the same issue as described by Hard2make1uniquename. Updates / solution would be great.

.

Hi all, just thought I'd update on my case.

Summary of issue:

When my laptop is charging/plugged in, it makes a weird scrambling, static noise. When unplug the charger, the noise is greatly reduced. (very similar to Hard2make1uniquename and Shagunpreet Singh)

The noise sounds like an old non-SSD HDD. This sound is quieter than the fan, but still very noticeable. I recorded the sound, see this file: https://1drv.ms/u/s!Atv0AwnaJsMtgssdJw_CbhlRzSbdkQ?e=W0xV7h

The issue has been present for the life of the PC (I've had it for a week or two now). I'm on Window 10 Pro Version 10.0.18362.

Support so far

Dell support contacted me and we ran though the following steps, but the sound is still present after completing each one.

• Update BIOS
• Connect alternate adapter
• Run Diagnostics
• Mute speakers
• Boot into Safe Mode
• Uninstalled and reinstalled the Intel Dynamic Tuning driver

Latest update from them last week was "We shall have the details shared with our Product group team and get back to you as soon as we have an update.".

Will update here when I hear back.

Hi There,

We have engaged our product specialists they will review and share updates, we will keep you posted as and when available. We appreciate your patience and co operation. 
Regards,

Paventhan M

Hello,

We have received an update from our product specialist and we would like to get additional information from you.

1. Please capture a longer audio recording in a slient room for further review.

2. Please provide us with the current BIOS version that is installed. To check the current BIOS version open run command by pressing Windows + R. Type msinfo32 in the run box and click ok. The 11th option on the right hand side will read BIOS version and date.

3. Run the on board hardware diagnostic. Restart the computer and tap F12 at the Dell logo. Select diagnostic and press enter to initiate the test. Capture a clear picture of the temperature reading during the test.

4. Provide the version of Intel Thermal Framework. Open run command by pressing Windows + R. Type devmgmt.msc and click ok to open device manager. Expand system devices and right click on the Interl Thermal Framework and go to properties. Capture the driver version and provide it to us.

5. Is the issue with noise noticed with the system out of the box?

Regards,

Muntazir Patel

Thank you, Michael. I have passed on these for review to our Product Group team, once we have any update, we will share the same.

-Akshatha

Hi Muntazir

Thanks for getting in touch. Please see answers below

1: Please see 45 seconds of audio of the static noise here: https://1drv.ms/u/s!Atv0AwnaJsMtgs9fcv7g20253DcMZg?e=INe0FX
2: BIOS Version/Date Dell Inc. 1.4.0, 25/11/2019
3: I ran Diagnostics as requested but no temperature was reported. All tests were passed.
4: Intel Thermal Subsytem (sic) - 02F9 Driver version: 10.1.27.2
5: Yes, the noise was noticed immediately on unboxing the PC.

Cheers

Michael