Where can I buy a sound card for think pad to 43 ?

SOURCE: how do i install audio output device

No Audio Output Device Installed
Some users have been experiencing problems with a "No Audio Output Device Installed" error when trying to play music, or when hovering the mouse over the speaker icon in the system tray. You may get a white X in a red circle to indicate this error.

Go to the device manager by pressing WINDOWS KEY + R to go to the run menu, and then run "devmgmt.msc".


From here, select your malfunctioning audio device(s) and make a note of the driver name. Then, right click on it and select Uninstall. This will remove the audio drivers from your system.


Once this is done, re-load the drivers for your sound card from the CD your manufacturer gave you with your PC or sound device. If you cannot find this, search for the driver on the manufacturers website using the driver name that has been written down. No Audio Output Device Installed
Some users have been experiencing problems with a "No Audio Output Device Installed" error when trying to play music, or when hovering the mouse over the speaker icon in the system tray. You may get a white X in a red circle to indicate this error.

Go to the device manager by pressing WINDOWS KEY + R to go to the run menu, and then run "devmgmt.msc".


From here, select your malfunctioning audio device(s) and make a note of the driver name. Then, right click on it and select Uninstall. This will remove the audio drivers from your system.


Once this is done, re-load the drivers for your sound card from the CD your manufacturer gave you with your PC or sound device. If you cannot find this, search for the driver on the manufacturers website using the driver name that has been written down.

SOURCE: speaker showing No Audio Output device is installed

Hi,
Try to uninstalled the audio driver.then restart the machine and again install the audio driver.hope this will work for you.


Thanks

SOURCE: no audio output device installed

first i would see if all my audio drivers are up to date.

use this program:

http://www.drivermax.com/

thanks
CBZ

SOURCE: no audio output device installed - compaq pressario v6000

Press the Windows key on the Keyboard and then press the "R" key while holding down the Windows key to open the Run dialog box.
Then, type "msinfo32" in the Run dialog box and click OK to open the System Information window.
On the left pane, click on the plus sign next to the "Components" then click on the Sound devices to check if the Window is able to recognize the audio card installed in the Computer.

If there is no audio device information available in the System Information window then the issue may be with the audio card.

To ensure if the issue is with the audio card, you may try reinstalling Windows.
If the issue still exist even after reinstalling Windows then you may contact the service center of the computer's manufacturer to get the audio card replaced with a compatible one.

SOURCE: driver sound card lab top model nec LaVie c LC700/6

try here
http://www.opendrivers.com/category/17/soundcard-free-driver-download.html