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  • Registered: ‎04-18-2010
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X220 - fan pulsing/beating issue...

2011-05-29, 20:34 PM


i just think that fan pulsing issue maybe needs new thread here because some major problems  pointed here http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/X220-fan-constantly-on-revving-up-and-down/td-p/425965/page/22 are with new bios (1.16) solved.


So, as many user may experience - thinkpad x220i (i3), but also other x220 series have this fan pulsing problem. If you put your ear at the fan area you could notice every 3-4 sec some sort of pulsing/beating. This pulsing is gone between 1954-1972 RPMs by my x220, but at all other RPMs i can hear it, or even feall it with my hand on keyboard.

I uploaded the sound of this pulsing fan here:



You can hear it with headphones an 100% Volume. Hopefully we get this problem solved...




Solved! See the solution

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Re: X220 - fan pulsing/beating issue...

2011-05-29, 21:58 PM

Duplicate thread locked.


Duplicating threads splits the discussion.


Thanks for understanding.



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