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27 Posts

05-30-2011

Germany

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  • Message 551 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 14:31 PM

Thank you for the update. I don´t know what exactly it does fix. But I can tell everybody it DOESNT fix the pulsing. I´ll sell mine on ebay....

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3 Posts

07-20-2011

USA

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  • Message 552 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 14:50 PM

I've been watching this thread for a while, thanks for the eagerly anticipated update JameZ. But unfortunately, the new BIOS does not improve the periodic fan pulsing on my system at all. With all due respect, is there any possible way you could you ask one of your engineers to weigh in with some information about the technical nature of the problem, and the prognosis for a permanent fix? There have been almost half a dozen BIOS updates proporting to address this issue, and as far as I can tell they are all completely ineffectual. It's like you're testing on totally different hardware, it's very frustrating and confusing (for you as well, I'm sure). To be blunt, I have very little confidence left that this issue will ever be satisfactorily resolved. If there's anybody in a position to speak honestly and knowledgably, please advise me and the other people who are similarly frustrated by this ongoing problem. Is there any reason we should hang in there, or would it make more sense to just dump these systems on eBay now while they still have some resale value?

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11 Posts

07-19-2011

Denmark

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  • Message 553 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 15:56 PM

Well the problem shouldn't be the pulsing, mine pulsed very very slightly, the only reason it was audible and a nuisance was because of the constant whine from the defective fan.

My X220 is currently enroute to a servicecenter and the Lenovo tech people have promised me that they will replace it with a fan that doesn't have a highpitched whine. Fingers crossed. To ship a brand new system out for repair isn't satisfactory at all.

 

 

 

 

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39 Posts

07-15-2011

France

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  • Message 554 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 16:02 PM
@sojoe02

Please let us know when you receive your (hopefully) fixed machine
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7 Posts

07-20-2011

Finland

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  • Message 555 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 16:06 PM

Hi,

 

here is another X220 owner suffering from high pitched, sometimes pulsing noise. For me it happens around 3000RPM, as reported by /proc/acpi/ibm/fan (running Linux 3.0.0-rc7) . Has someone actually managed to fix this issue, perhaps by having the fan (= apparently whole cooling system) changed? Is it possible to order a new cooling system online, even if changing it voids warranty? I wonder if some possibly brutal, home-made fix could help...

 

Like many people said already, it seems quite unlikely that this is a software issue. I would be interested to see if the problems can be linked to manufacture date. My laptop is apparently manufactured "11/06", as reported on the underside of my laptop.

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39 Posts

07-15-2011

France

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  • Message 556 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 16:24 PM

It seems we can order the part from here :

 

https://www-304.ibm.com/shop/europe/webapp/wcs/stores/servlet/default/CategoryDisplay?catalogId=-250&storeId=250&categoryId=3063814&langId=-2&cm_sp=ct249-_-2BC150001-_-DTW_parts-20090217

 

(type 04W0435 in the first searchbox)

 

But we need to know if the part will be a good one. Since my system was built in july (and has the noisy fan) and the whining fan problem was already reported severals months ago, we can doubt the issue is taken seriously.

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8 Posts

07-20-2011

Nevada

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  • Message 557 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 18:19 PM
I just sent my X220 in for the fan cycling/whine problem as well. I put up with this problem on the T40 and T60 and vowed to never accept it again because it's so annoying in quiet environments. My X201 doesn't have the problem so it's odd that the problem resurfaced on the X220. I'll post when I get the machine back from Lenovo.
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83 Posts

06-14-2011

USA

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  • Message 558 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 19:53 PM

 


wrote:

I've been watching this thread for a while, thanks for the eagerly anticipated update JameZ. But unfortunately, the new BIOS does not improve the periodic fan pulsing on my system at all...

 

There have been almost half a dozen BIOS updates proporting to address this issue, and as far as I can tell they are all completely ineffectual...


So you tried BIOS 1.19 and no change in the fan pulsing?  Hmmm.  FWIW, there is at least one report (from ferganer) of recent *T520* BIOS releases eliminating his fan pulsing.  The T520 and the X220 are obviously not the same machine and without feedback from someone in engineering one can only guess at how similar the BIOS/ECP branches are.  However, I and perhaps others had hoped to hear more good news including from some folks who tried the latest X220 BIOS.  A report here and there isn't enough to paint a clear solid picture, so I hope others will report their findings. 

 

Edit: The X220 1.19 readme does mention "Improved fan control method" so it would be interesting to know if anyone notices *anY* difference in fan behavior.

 

 

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3 Posts

07-20-2011

USA

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  • Message 559 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 21:34 PM

Yeah, I'd heard this was fixed in some other models which is why I was looking forward to the new update. I wish it worked better for me. I haven't done as extensive testing as some people in this thread, but my impression is that the root cause of the periodic pulsing is not addressed, and the engineers are just twiddling knobs hoping for a fix. On my machine at least, the noise is (as always) evident regardless of OS or power management settings, and easily audible whenever the fan itself can be heard. My controller is listed as 8DHT25WW (1.09) BTW if that matters to anyone.

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42 Posts

07-20-2011

United States

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  • Message 560 of 921

Re: X220 - fan constantly on / revving up and down

2011-07-20, 21:50 PM

I've been following this thread for a month hoping that a fix would be issued for the pulsing--something like the 1.28 BIOS issued for the T520. I just tried 1.19 and still having the 5-second pulse, along with the whine (less audible under 2k RPM). I have been using TPFanControl and removed it to test it and had the same issue. Same thing happens under Ubuntu Linux.

 

My machine is a 4286-CTO produced during the last week of June 2011. Core i5-2520M with Windows 7 Home Premium 64-bit (though the OS doesn't matter--I still get the pulsing under Ubuntu). I have noticed that there is also sometimes a 5-second surge with with the hard drive, too--it's like the computer is spitting out some energy every five seconds to keep everything moving along. The fan pulse is also accompanied by a short tick under the top-left portion of the keyboard. If I shut off the fan with TPFanControl, I can still hear a periodic discharge of energy under the keyboard...like a tiny valve is being released every five seconds or so. These behaviors appear regardless of power manager settings or AC/battery state.

 

I work in a school in a third-world country during the academic year which has no postal system or trusted courier service. Unfortunatley for me, I do not have time to send my machine out to be serviced before I head back for the beginning of the school year. I won't be home to the US until the beginning of next June, which will leave me only a couple weeks before my warrantee service expires on July 1, 2012. Hopefully that will be long enough to get the fan replaced.

 

I have noted throughout this thread that a number of users have had their machine "serviced" and the machine returned either with the same fan or with another fan that had the same problem. I hope that those who have theirs out for service right now will post back regarding whether or not the warranty service resolved the problem. I am very envious of those who say they have no whine with their fan.

 

I work in a hot, humid climate, and with no air conditioning. The lack of AC and the accompanying silence means that I'll hear my fan gasping every five seconds even on the lowest sub-2k settings. The heat means that it will be running hotter, and so it's not likely to run under 2k.

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