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I find all sounds my computer makes a bother. I have managed to turn off almost everything, but the "change state" between "on battery" and "on power" still remains.

How can I turn it off?

Thanks.

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  • what operating system?
    – user1931
    Oct 29, 2009 at 22:34
  • XP Pro >>>>>>>>>>>>>>>>>>>>>>>>>
    – Xavierjazz
    Oct 29, 2009 at 22:47

4 Answers 4

Reset to default
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If you have the Lenovo Power Manager utility installed, go into 'Global Power Settings' and uncheck 'Beep when power state changes'. (This is on my T60p, Win7 32-bit with Power Manager 3.05)

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I have a T41, but on that computer, you can switch the sound on / off in the BIOS setup.

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  • +1 for OS-independent answer. On a T60p it is in config->alarms.
    – joseph_morris
    Aug 8, 2015 at 15:50
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Depends if you're referring to a system beep or a sound from the sound card. Either way, both can be disabled in device manager.

  • Start -> Run -> devmgmt.msc -> Enter
  • View -> Show hidden Devices.
  • Non-Plug and Play Drivers -> Beep -> Disable.

For your sound card:

  • In the same device manager window, go to Sound, video and game controllers
  • Right click your audio device and hit disable

reboot.

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  • Thanks John. I tried the Non-Plug and play and that didn't do it. As I am not very secure with changing my computer, I am hesitant to try the other. There are a number of devices and I don't want to turn off something I may need. I assume that it will be either the legacy audio drivers or the Audio Codecs. Can you tell me if I will need these in the future? My concern is that I will fix my immediate problem and not find a problem this causes until I can't remember how to do change it back. Thanks again.
    – Xavierjazz
    Oct 31, 2009 at 22:04
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I am using an IBM ThinkPad R50 running Windows XP Professional. This is how I resolved it, after being inspired and informed by the preceding posts! Thanks to the previous contributors!

Click "Start" > "Access IBM" > "ThinkPad Configuration."

The "ThinkPad Configuration" dialog appears.

Click "Power Management" on the right-hand side of the dialog.

The Power Options dialog appears. Click here to see the Power Options dialog.

On the "Power Options" dialog, go to the "Beeps/Alarms" tab.

Set "Power control beep" to "Disable."

Click "Apply."

Close the dialogs.

The change should be immediate. Enjoy a more silent ThinkPad experience!

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