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207 Posts

08-28-2008

Israel

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Re: T420s Fan noise Issue

2011-09-08, 22:48 PM
Does not do the job at all.
___________________________________________________________
Lenovo Thinkpad T420s
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7 Posts

06-28-2011

Seoul

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  • Message 342 of 1217

Re: T420s Fan noise Issue

2011-09-09, 0:09 AM

New bios is useless.

 

No change.

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3538 Posts

07-12-2010

Malaysia

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Re: T420s Fan noise Issue

2011-09-09, 6:21 AM
@All,

Appreciate everyone's prompt feedback on this. Please boot into BIOS and check the BIOS version and EC version is correct after flashing BIOS 1.28

BIOS version 1.28 (8CET48WW)
EC version 1.10 (8CHT23WW)

Check the 8CET48WW and 8CHT23WW

Thank you
James
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107 Posts

06-28-2011

Italia

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Re: T420s Fan noise Issue

2011-09-09, 7:09 AM
Both versions match on mine. No improvements at all with the new BIOS and EC.

I had high hopes for the new BIOS, but it seems that it doesn't work. I have to say that at least it mentions "fan cooling" in the log; that might mean someone is working on it. What still disappoints me is that it is not fixed yet.

@JameZ, any plans of getting a bad machine now to properly solve this annoying issue? Volunteers from Europe are still a no-go?
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19 Posts

06-08-2011

Germany

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Re: T420s Fan noise Issue

2011-09-09, 7:50 AM

@JameZ

 

is it really so difficult to say whether the bios update for T420s applies to T420 too? Or whether there's an equivalently updated BIOS for the T420?

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107 Posts

06-28-2011

Italia

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Re: T420s Fan noise Issue

2011-09-09, 8:17 AM

wrote:

 

is it really so difficult to say whether the bios update for T420s applies to T420 too? Or whether there's an equivalently updated BIOS for the T420?



I don't think it does, last time I checked there were different BIOS versions for the two machines. By the way, is there a tread for the fan noise on the T420 (not s)? I think the main reason that your complaints are ignored here is that everybody reports issues with the T420s and expects updates for that machine. You probably should open a tread reporting fan issue on the T420, since they are different products.

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3538 Posts

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Re: T420s Fan noise Issue

2011-09-09, 8:37 AM
@alexcriss,

Thanks for the revert.

@fratalek,

Sorry I missed out on your message. The BIOS is only for T420s and T420si.

For T420, would appreciate if you post in on the main thread.

//JameZ
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19 Posts

06-08-2011

Germany

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Re: T420s Fan noise Issue

2011-09-09, 8:47 AM

@alexcriss

 

Good point, I see that there is  a thread for the T420 now, but it's nowhere near as lively as this one.. I'm not sure if it is better to scatter our voice as a community given Lenovo's lazy attitude and given that it is likely the same problem on a variant of the same model.  So...

 

@JameZ

 

By the main thread you mean: http://forum.lenovo.com/t5/T400-T500-and-newer-T-series/T420-Fan-noise/td-p/417971/page/5 ?

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207 Posts

08-28-2008

Israel

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Re: T420s Fan noise Issue

2011-09-09, 9:06 AM

wrote:
,

Appreciate everyone's prompt feedback on this. Please boot into BIOS and check the BIOS version and EC version is correct after flashing BIOS 1.28

BIOS version 1.28 (8CET48WW)
EC version 1.10 (8CHT23WW)

Check the 8CET48WW and 8CHT23WW

Thank you
James

Confirmed BIOS version, but EC version doesn't know where to find.

___________________________________________________________
Lenovo Thinkpad T420s
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49 Posts

08-10-2011

Germany

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  • Message 350 of 1217

Re: T420s Fan noise Issue

2011-09-09, 10:03 AM

I found it in the Bios.

 

So i have noticed that the fan goes some timess down to 2000rpm with cpu temp at ~45°C so I think that is a litle divrent. 

 

Bios is 1.28  and EC 1.10

 

 

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