HP ENVY Phoenix 810 Fan Noise

[Frank3D]

I've had this computer for several years it's my first with the liquid cooled processor so I thought the fan noise was normal which I've now found that is not the case.  It's about the level of a vacuum cleaner running in the next room and is just getting annoying as the sound is being recorded when I do training videos.

I've tried many of the bios changes and adding seconds to boot time is there anything else I should try? I'm trying to find the part number to even try replacing the fan. At one point I could get it to stop if I fiddled with the wire a bit. thinking it is getting too much current or something. Thanks in advance for your suggestions.

[Grzwacz]

Greetings,

Welcome to the forum.

I am not a HP employee.

Sounds like the AIO CPU  liquid cooling fan is the issue. You have not isolated the fan but appears you are referring to the CPU radiator fan. It could be the graphics card fan.

Download and run HWiNFO Portable (Link) to check CPU temps.

See what's happening at idle or using whatever programs you use when the fan speed spikes.

You can also run a CPU stress test (Link) to check CPU temps.

The CPU pump may be failing. You may have to reapply CPU TIM. The radiator fan may be failing.

HP usually uses a 92 mm fan on the AIO CPU radiator.

You would have to check HP Part surfer (Link) for a replacement fan. Or look for a replacement 92 mm static pressure fan online

Regards

[Frank3D]

It is the smaller fan in the heatsink assembly. I think it's part number HP Fan Part Number: 640256-001 when I unplugged just the smaller fan the noise is gone.  seems odd though that the fan would be running at a higher speed than needed. 

It's rather loud averaging near 60dB which is quiet annoying when I do a lot of recording from this machine. 

I'm just curious if something else is causing it to think it's over heating which it is not. I've used the app your recommended and average core temp is 27° C. 

I've attached a screen-shot of the summary and sensor status. 

[Grzwacz]

Hi Frank3D,

The average CPU temps (27 degrees C) look good if you are stressing the CPU.

60 dB represents a conversational sound level which is annoying.

Try resetting CMOS. Or replace the fan.

The part number you have provided is probably not available using HP Part Surfer (Link).

I checked three PCs and could not find a purchase.

Regards

[wb2001]

@Frank3D,

Not knowing the components, you were VERY lucky. You unplugged the  pump.

The bulky liquid reservoir and fan are a separate unit. The hoses go to the pump,  making up the components of a closed loop cooling system. The pump is the small unit mounted onto the CPU.    How it works

So, from the example, you take notice that the pump is attached to the CPU chip. The reservoir and fan are above the pump, so gravity can assist the pump flow.