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5 Posts

12-14-2013

Canada

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T430s high pitch hum when in sleep/hibernate

2013-12-14, 13:59 PM

I’m hoping someone can clear up this issue for me. I’m not sure if it’s just my hearing that’s too sensitive or if it really is an issue.

 

I’ve had the T430s for about a year. Whenever the laptop goes into sleep/hibernate mode, I hear a high pitched hum come from the bottom back section of the laptop. It also becomes noticeably louder when I unplug the AC adapter. I've put my ear to the laptop to try to identify where exactly the noise is coming from. I attached a picture with the general vicinity circled.

 

I don’t think I explained the issue to the repair centre properly. They ended up replacing the fan the first time I sent it in for repair. The second time I sent it, they replaced the system board. However, it continues to emit that high pitched hum.

 

Am I being too sensitive to the noise or is this something that can be fixed? I’m just past my warranty and I’m afraid if there is a problem that isn’t identified, I’ll be stuck with it for the next few years. Any advice that can be provided will be appreciated. Thanks!

 

Link to image

 

Moderator note: images totalling more than 50k converted to links per forum rules:  Lenovo Community Participation Rules

 

Admin edit: Merged this thread with another similar topic.

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113 Posts

01-18-2013

USA

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Re: T430s high pitch hum when in sleep/hibernate

2013-12-27, 11:45 AM

Doing a search for "coil whine" might give you some answers. A defective component on the motherboard, such as a capacitor, could have worsened over time and cause coil whine.

 

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42 Posts

06-18-2010

Texas, USA

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T430s High Pitched Whine

2013-12-16, 15:41 PM

My T430s has started emitting a very high-pitched whine that "accelerates" over time. The character of the sound is not unlike listening to a motorcycle accelerate and upshift: the pitch steadily increases, then drops down and increases again. It happens whether docked or undocked on battery power, and it seems to mostly happen within the first 20 minutes of booting. I don't think it's a fan bearing or blade because the pitch is so high, but I could be wrong.

 

Anyone else experience this?

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1091 Posts

09-24-2013

Bangalore

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Re: T430s High Pitched Whine

2013-12-17, 12:39 PM

Hi,

 

Welcome to Lenovo Community Forums!

 

I’m sorry to hear that you are getting a high pitched whine from your Lenovo ThinkPad T430s.

 

Refer this knowledgebase and disable power management of the CPU in BIOS.

 

Hope this helps!

 

Best regards,

Mithun.



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09-24-2013

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Re: T430s high pitch hum when in sleep/hibernate

2013-12-17, 13:14 PM

Hi,

 

Welcome to Lenovo Community Forums!

 

I’m sorry to hear that you are getting a high pitched whine from your Lenovo ThinkPad T430s.

 

Refer this knowledgebase and disable power management of the CPU in BIOS.

 

Hope this helps!

 

Best regards,

Mithun.



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5 Posts

12-14-2013

Canada

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Re: T430s high pitch hum when in sleep/hibernate

2013-12-22, 8:13 AM

wrote:

Hi,

 

Welcome to Lenovo Community Forums!

 

I’m sorry to hear that you are getting a high pitched whine from your Lenovo ThinkPad T430s.

 

Refer this knowledgebase and disable power management of the CPU in BIOS.

 

Hope this helps!

 

Best regards,

Mithun.


 

I tried both solutions. Unfortunately, I still hear the whine. 

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1091 Posts

09-24-2013

Bangalore

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Re: T430s high pitch hum when in sleep/hibernate

2013-12-23, 10:03 AM

Hi,

 

Sorry to hear that the issue still persists. If the sound that is heard is not affected by either of the above said setting changes, then check for other possible causes including the hard disk, memory, microphone & audio settings, AC adapter pack. It could be even an issue with the CPU/Systemboard. Also, check if the battery is causing the buzz.

 

I would suggest you to get the system checked by a Lenovo authorized technician. Sorry to hear that your system ran out of warranty.:smileysad:

 

Regards,

Mithun.



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113 Posts

01-18-2013

USA

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  • Message 7 of 14

Re: T430s high pitch hum when in sleep/hibernate

2013-12-27, 11:45 AM

Doing a search for "coil whine" might give you some answers. A defective component on the motherboard, such as a capacitor, could have worsened over time and cause coil whine.

 

0 person found this solution to be helpful.

This helped me too

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113 Posts

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USA

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  • Message 8 of 14

Re: T430s High Pitched Whine

2013-12-27, 12:20 PM

Sounds like a case of 'coil whine' to me.

 

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45 Posts

12-19-2013

Slovakia

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  • Message 9 of 14

Re: T430s High Pitched Whine

2013-12-27, 18:14 PM

I've got same problem with my T510, seems like doing it only on battery. Very annoying..

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10 Posts

04-02-2011

United States of America

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Re: T430s high pitch hum when in sleep/hibernate

2014-01-22, 19:21 PM

It's coil whine--a systematic problem for recent ThinkPads, and a problem that Lenovo has made very clear over the last half-decade that it has no interest in fixing. When the Core 2 Duo (Penryn) CPU was released, this problem was common for many laptop manufacturers due to changes in the architecture. Most computer makers took steps over the next few generations to fix or lessen it. Lenovo, on the other hand, seems to have made no attempt to reduce CPU whine, and almost all of their Intel I-series-based machines still seem to suffer from it. It would probably be a cheap fix to do QA for this issue and fix it by using higher quality power system components or glue, but if less than 2% of people are sending computers back for the issue they don't seem to care.

 

For more information and some sound samples, see a post I made in 2012 about the issue.


I haven't posted the recordings of the noise when the computer is asleep, but it sounds exactly as you described, and I can post them if that would be helpful.

 

Your options are 1) keep sending the computer in for motherboard replacements in the hope that you'll get one with better power components, or 2) buy a computer from a manufacturer who cares about noise issues and has put in at least a little effort to prevent them.

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