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15 Posts

09-11-2021

Norway

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  • Message 11 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-22, 13:30 PM

This has been such a bad experience. Total waste of time and lackluster support from Lenovo.

More Drama from Lenovo Flex support team.

First they claimed that CPU temperatures never goes above 90 degrees celcius in stress test. And when I showed them recording where 100 degrees celcius temperature is sustained in matter of seconds after running stress test. they diverted the Issue again saying that this is a Software Issue because you are not using Lenovo's Windows 10 Image.

And without fixing the software, they had shipped PC back to the customer. Please note that I have given my consent to reinstall OS if necessary.

 

So in a Nutshell it went like this:

1) Customer claimed and proved high temperature issue in video recording. Lenovo response to thermal issue is that COIL whine is normal.

2) Customer says please focus on thermals during load. Coil whine noise/issue is not reported by customer. Lenovo's flex response is that CPU sustained temperature is 90 degrees under load, not 100 degrees as claimed by Customer.

3) Customer reshares the videos and screenshots showing 100 degrees celcius. Customer also shares instrcution to reproduce issue using CPU stress test (CPU-Z) or Real world workloads like Linux Kernal compilation. Lenovo's response is 'This is a Software Issue. Use Lenovo Windows Image to fix this'. And they ship the PC back to Customer without any repair/fix.

 

I have offered my full support, providing enough detailed information but support from lenovo flex was lackluster to say the least.
If the customer is willing to help you identify the Issue via remote session, they should have at least waited.
All the time has been wasted because the Lenovo flex support team didn't even care to hear customer feedback. The PC is useless for us as such. 
This has been a really bad experience.
 

 

 

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15 Posts

09-11-2021

Norway

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  • Message 12 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-24, 17:10 PM

I have received the PC back from Lenovo flex repair depot today. Lenovo flex claimed that CPU temperature never goes above 90 degrees in their stress testing and that we need to reinstall OS with Lenovo image as they think this is a software issue.

We have reinstalled OS using lenovo p330 tiny recovery image and the results are identical. CPU operates at 100 degrees during load.

Basically BIOS is failing to perform throttling when CPU has reached maximum operating temperature.

 

What should I do? Lenovo support is not ready to listen at all.

 

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5225 Posts

02-22-2010

United States of America

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  • Message 13 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-24, 18:19 PM

Can you post a picture of the top side of the system with the cover off?  Since this is a config that is utilizing onboard graphics only (i.e. no GPU) and a 65W CPU, I just want to confirm that the correct heatsink was installed with the system.  The thermal solutions are completely different for the 35W CPU + GPU solution compared to the 65W CPU only solution.

 

The employees that post in this forum really don't have any tie in to the support team directly, so there's not much we can do to interact with the group that serviced your system.  But I will see if I can get this thread over to somebody within that group to see if they can take a look at this case.  You've done a fair amount of background work to eliminate variables here, and something still doesn't seem right with your system based on what I'm reading.  




If we've helped resolve your issue, please be sure to mark your topic as solved!
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15 Posts

09-11-2021

Norway

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  • Posts: 15
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  • Message 14 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-24, 22:01 PM

Heatsink seems to be correct. 65W CPU P330 Tiny units comes with copper heatsink while 35W CPU heatsink are aluminium based. Check attachment.

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15 Posts

09-11-2021

Norway

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  • Message 15 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-25, 2:21 AM

65-70 db is the average noise i.e. Jet Engine during CPU load at 100 degrees celsius. M920x with 65W cpu noise always stays below 50db and temps are always below 90 deg.

 

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15 Posts

09-11-2021

Norway

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  • Posts: 15
  • Registered: ‎09-11-2021
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  • Message 16 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-25, 3:52 AM

Some more inputs. As I told earlier in my first post, we also have Lenovo M920x tiny with 65W cpu. Design schematics of M920x Tiny and P330 Tiny are 100% same, only branding is different.

 

M920x Tiny PL2 settles down at 55W. CPU temperature of M920x stays at 90 degrees celsius while drawing 55 Watts.

As I noted in my first post, this same throttling is not working in P330 Tiny due to a BIOS bug. In order to view P330 Tiny thermal dissipation performance at same wattage, that is at 55 Watts, I had to manually set PL1 and PL2 to 55 Watts on P330 Tiny, to see get noise and temperature comparison between M920x and P330 Tiny while drawing 55 Watts.

 

So now we have two Identical systems, both drawing 55 Watts at PL2 turbo boost.

 

Finding are definitive and they clearly show that my P330 Tiny has serious thermal assembly and Fan issues.

 

M920x Tiny CPU temperature while drawing 55 Watts is 90 degrees celsius.

M920x Tiny Fan Noise while drawing 55 Watts is 47 Decibel while spinning at 3500-3600 RPM.

 

P330 Tiny CPU temperature while drawing 55 Watts is 98-100 degrees celsius.

P330 Tiny Fan Noise while drawing 55 Watts is 55-57 Decibel while spinning at 3500-3600 RPM.

 

So M920x fan is silent by 10 decibels while spinning at same speed/RPM. Keep in mind that noise is lograthmic and 10 db difference is huge.

 

P330 Tiny CPU temperature while drawing 65 Watts is 100 degrees celsius (This is default behavior - out of the box).

P330 Tiny Fan Noise while drawing 65 Watts is 67-70 Decibel while spinning at 4500-4700 RPM (This is default behavior - out of the box).

 

67-70 decibel is the Jet engine noise.

 

Model number of our M920x Tiny unit is 10S0S08M00.

 

M920x Tiny and P330 Tiny Heatsink and Fan part number are the same.

 

If I set PL1 and PL2 power values to 45 Watts on P330 Tiny, then only the temperatures stays at 90-91 degrees. So basically, M920x is able to maintain 90 degrees celsius @ 55 Watts whereas P330 Tiny can maintain 90 Degrees celsius @ 45 Watts. Keep in mind that P330 Tiny has been repasted with high end thermal paste (Gelid GC extreme) whereas M920x is running with low grade chinese thermal paste. And we have tried many two other different high end thermal pastes on P330 Tiny but that doesn't make any difference.

 

So with this comparison, we can definetely see that P330 Tiny Fan and Heatsink assembly has serious issues because we can clearly see that M920x works fine within the parameters while dissipating 55 Watts load while P330 Tiny doesn't.

The other difference is the buggy bios of P330 Tiny. Thermal throttling works fine on M920x Tiny but not on P330 Tiny.

 

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15 Posts

09-11-2021

Norway

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  • Posts: 15
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  • Message 17 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-29, 3:41 AM

Updated System Firmware to M1UKT67A (8 Sep 2021) but it doesn't helps. CPU operates at 100 degrees on sustained load and noise levels tgeare between 65-70 decibels i.e. Jet Engine.

 

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15 Posts

09-11-2021

Norway

7 Signins

105 Page Views

  • Posts: 15
  • Registered: ‎09-11-2021
  • Location: Norway
  • Views: 105
  • Message 18 of 18

Re:Lenovo P330 Tiny - High temperature (100 degrees) and Extremely Noisy Jet Engine Fan

2021-09-29, 4:11 AM

OS has been reinstalled using Lenovo recovery image but that doesn't help either. I wonder what will be next shameful excuse from lenovo support to disown this.

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