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ThinkPad NotebooksThinkPad: T400 / T500 and newer T series Laptops
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143 Posts

11-15-2009

Stockholm

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Re: re: T420s Fan noise Issue

2011-12-13, 20:49 PM
I don't think HWInfo is going to cause any problems since all it's doing is reading the onboard sensors.

I just have to watch an HD movie file and it'll pump the fan RPMs up to 4000 ...and then get stuck.
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16 Posts

10-26-2011

Canada

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  • Message 742 of 1217

Re: re: T420s Fan noise Issue

2011-12-13, 20:57 PM

I have had mine go up many times, and come back down, last night was the first time it got stuck, and I had hwinfo open @ the same time, I usunally never use the program..

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143 Posts

11-15-2009

Stockholm

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  • Message 743 of 1217

Re: re: T420s Fan noise Issue

2011-12-13, 20:59 PM
Have you ever watched an HD video before on it?
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16 Posts

10-26-2011

Canada

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  • Message 744 of 1217

Re: re: T420s Fan noise Issue

2011-12-13, 21:21 PM

Lot's..

 

1080p stuff, 720p too

 

I was playing a game on it, running @ full res, and I only have the intel, no Nvidia..

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107 Posts

06-28-2011

Italia

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  • Message 745 of 1217

Re: re: T420s Fan noise Issue

2011-12-13, 21:54 PM

Well, Linux doesn't have HWInfo, still my fan is stuck at 4000 RPM :(

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3538 Posts

07-12-2010

Malaysia

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Re: re: T420s Fan noise Issue

2011-12-14, 3:00 AM
@antsh or people in the States,

Appreciate someone who has a T420s which runs at 4k RPM all the time (Temp below 45c), running at idle with no external monitor connected. I want to get a machine in to engineering since they do not have any problematic one left in the lab.

//JameZ
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143 Posts

11-15-2009

Stockholm

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  • Posts: 143
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  • Message 747 of 1217

Re: re: T420s Fan noise Issue

2011-12-14, 5:38 AM
@JameZ: Check your PM!
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7 Posts

06-28-2011

Seoul

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  • Message 748 of 1217

Re: re: T420s Fan noise Issue

2011-12-14, 7:03 AM

@Jamez

 

Open any box in your stock. You can feel the noise.

 

I can't believe sngineers stil can't figure out this problem. I guess your team has just one good sample.

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3538 Posts

07-12-2010

Malaysia

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  • Message 749 of 1217

Re: re: T420s Fan noise Issue

2011-12-14, 8:43 AM
@Calkenneth,

Replied you.

@WL_t420s,

Do check back previous post where the BIOS did help some of the customers.

//JameZ
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6 Posts

12-07-2011

Berlin / Germany

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Re: re: T420s Fan noise Issue

2011-12-14, 10:13 AM
Thanks JameZ for following this up with the engineering team.

wrote:
...T420s which runs at 4k RPM all the time (Temp below 45c), running at idle with no external monitor connected. ...

:

 

Three (.5) questions:

1.) You are saying the T420s has been designed to run mainly on 4k if an external monitor is connected? 
2.) Can you please share the relation table "temperature --> fan speed" that has been incorporated into BIOS version 1.30?
2a.) Is the temp/speed relation table for Nvidia and Intel graphics based models identical?
3.) Are there any other temperature sensors that are not visible in all of the previous posts? If so, what do they measure?


Thanks,

b4

 

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