08-23-2011 08:09 AM
The reference to the whine on the T410/T510, unfortunately won't help in this case. For those systems, we have a hardware fix in the form of a different system board. The X220 has not been shown to have that kind of issue (in terms of significance) and so we don't have a hardware update. Calling service for this probably won't help unless you have a severely out of spec system.
The dynamic noise reduction was removed because it was contributing to the fan cycling issue that was addressed by a combination of changes in the BIOS and removing this function. You could revert to an earlier version of power manager if you didn't experience an issue with fan cycling.
11-05-2011 08:47 AM - edited 11-05-2011 08:53 AM
I am experiencing the same problem like justyn on x220, loud electrical noise which is directional and coming from the place between monitor and keyboard.
When I press the monitors frame under the monitor the sound almost disappears. I noticed I have a small gap between this plastic frame and the display. The sound looks like to be a natural noise of LED
Is this also your case, justyn? Are there any other users with this problem of annoying buzzing? Thank you for your reply in advance! Otherwise I will try to change my laptop
11-08-2011 09:44 PM
11-22-2011 12:18 AM
I have the same problem.
Usually, I didn't notice in my lab due to the loud background noise.
However, I can hear instant high pitch noise in my room, some thing like "zuk zuk" or "zick zick" coming from near the power button.
It is not from speaker and fan, or hdd.
And it is not a constant noise but a temporary noise which is generated when I press forward or backword buttons during web surfing. (Possibly, it looks like due to a certain power change during the instant reading from cache.)
**X220 i7-2620m, 8gb, 350gb 7200rpm hdd
11-26-2011 08:21 AM - edited 11-26-2011 08:22 AM
Yes, somehow I have it in my W520 on battery only. For my W510, this even occurs in AC mode. This is not Lenovo design flaws. It's either the Intel CPU flaws or it's voltage regulator work this way. Laptops from other manufacturer with Intel Core i-series processor also suffered from this issues.
(Current: W520 4284-A99) (Refunded: W510 4876-A11)
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04-16-2012 04:34 PM
I'm so sorry I didn't read this thread before buying an X220.
Is there a solution to this problem? The buzzing noise is too annoying.
I stopped using my old mobile phone because it had an electrical buzz after it's screen (probably LED) was replaced.
If closing the lid and connecting the machine to an external monitor stopped the noise, it would be ok, but closing the lid doesn't change a thing
Is there an official word from lenovo regarding this issue? Can support fix this? if not, can I be reimbursed? I chose this type of machine after reading reviews that stated the machine is quiet. What are my options now?
05-09-2012 03:58 PM
I confirm that I also have that problem. There is nothing to do about it. There is so many issue with that laptop.
05-09-2012 04:35 PM
Nope, same issue. Time to buy a new laptop!