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Brand new HP All-in-one 27-dp0007nf : unbearable CPU fan noise

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HP All-in-one 27-dp0007nf
Microsoft Windows 10 (64-bit)



as a professional, I bought 7 HP All-in-one 27-dp0007nf to renew the office of a client. As I was going through the pre-setup before delivery, I discovered all the HP All-in-one 27-dp0007nf I bought have a constant noise fan that, in an office environement, is just impossible to accept.


1) The machines are new (just out of the package).

2) They got fully updated (Windows & drivers / bios from HP)

3) All of them make this noise.


Solutions I tried :


1) Removed everything from Windows startup (It just can't be lighter, nothing is running except the system ! And the CPU is pretty much idling under 10%.

2) Modified energy policy for passive CPU cooling


What I discovered :


1) The HP All-in-one 27-dp0007nf makes this noise even while idling in the bios.

2)  While doing absolutely nothing, sensor shows that the CPU is already around 50-55°C in all of them.

3)  Bios gives the indication that the fan runs ALL THE TIME between 1000RPM and 1500RPM.

4) My wild guess is that it has a bad thermal dissipation design and not much can be done about it.


I just can't deliver this product to my client, for the complains will be against me. What solutions do I have ?

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I have sent this to a higher level.  You will be contacted.

This system is feedback driven thru Solution and Kudo flags. It's the only means of knowing if you have been served. Please click Accept as Solution, if your problem is solved. To say THANK YOU, press the "thumbs up symbol" to render a KUDO. You can render both Solution and KUDO..

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I returned them all to HP. However I'm still waiting for the return process informations.

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Welcome to the HP support community.


I request you to talk to HP support.

They might have multiple options to help you with this.

  1. Click on this link -
  2. Select the country.
  3. Enter the serial of your device.
  4. Select the country from the drop-down.
  5. Click on "Show Options".
  6. Fill the web-form. A case number and phone number will now populate for you.

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.


I am an HP Employee

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