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RichBond
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Noisy CPU fan in new All in One Desktop

HP Recommended
HP All-in-One 24-f0047na
Microsoft Windows 10 (64-bit)

Hi there,

 

I have just bought and set up a new HP All-in-One 24-f0047na.

Set up straight forward and everything working OK.

However since I've been sat working on the computer I've noticed that the CPU fan is constantly running and is making a very distracting noise. My 7-year old laptop doesn't make anywhere near the same amount of noise when it is idling.

The fan runs at a constant 1600-1700rpm regardless of CPU usage, even when it is as low as 5%. The noise starts as soon as the PC is booted up and continues once Windows is booted and then idling.

 

I had tried all of the fixes on the HP Support site https://support.hp.com/gb-en/document/c03702528

1. Changing power settings does not stop or alter the fan speed or noise.

2. The PC is fresh out of the box, vents are clean.

3. I've been through and stopped all unnecessary apps and processes, no change.

4. Couldn't find any corrupt processes in Task Manager.

5. I've updated Graphics driver.

6. I've updated BIOS.

 

I've been into BIOS and there is no option to manually change fan speed or settings.

It seems that the CPU fan is just constantly running rather than adjusting speed in response to rising temperature.

I'm out of ideas and the noise is driving me mad, please help!

 

Cheers,

Rich

3 REPLIES 3
Grzwacz
Level 12
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Message 2 of 4
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Greetings,

Welcome to the forum.

I am not a HP employee.

 

You seem to have a thermal problem or a MB thermistor problem if temps are okay.

 

Run HWiNFO portable (Link) to check temps.

 

New PC with fan issues may require HP Support or return/exchange.

 

Regards

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RichBond
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Hi 

 

 

 

 

 

Thanks again for your advice though, is much appreciated.

Grzwacz
Level 12
Level 12
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Message 4 of 4
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Hi,

 

You're very welcome.

 

Hope you get this sorted out.

 

I see in your initial post you have adjusted power settings. Not sure what you did but trying the Power Saver option might help with the constant fan noise. This setting should slow down the processor which could reduce temps and lower CPU fan speed when the system is idling or under low loads.

 

The component swapping options (such as replacing the factory CPU fan/heatsink and other components) on a AIO PC are limited.

 

Regards

 

 

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