Question about NEC LaVie S LS900/8E Notebook

1 Answer

Signed drivers i have downloaded a software realty Ac97 version WDM A398. the system seems to play a sound but i cannot hear any... then i ve checked the problem... the driver is not digitally signed... can u please help me where can i find the so called DIGITALLY SIGNED DRIVER for ATI SB200 Ac97 audio driver... thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers
Re: signed drivers

You try to connect self powered extenal speakers and see how it responds. whether it works or not this suggests that the drivers could not be correct ones - where possible it is good to continue searching for correct drivers and will get back to you soon.

Posted on Dec 26, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

I got no audio device installed for my blue version notebook, so it can't play any sound.

No audio device can be due to
1.No audio driver installed.(Software Problem)
2.Audio driver installed in the system got corrupted.(Software Problem)
3.The port or the speaker has gone bad.(Hardware Problem)
Reinstalling the audio driver will fix 1 & 2 but if it doesnot then it is due to number 3 and needs to replace the hardware part.

Feb 17, 2011 | PC Laptops

2 Answers

I don't have a sound on my laptop Compaq presario m2000,with speaker (on board),Altec Lansing

cheak for ur driver, update sound driver, download real tech AC97, other clean up ur registry keys, download reginout that may help u

Aug 24, 2010 | Compaq Presario M2000 Notebook

1 Answer

VIA AC97 Audio Chipset not found on my system

Goto realtek site(makers of ac97) and download the hi-definition driver ( version 1,6,0,4)Thgis will work with vista or xp as I have down graded to xp for stability reasons on mine. ( also if you need the video driver visit and download the radeon x bundle)

May 16, 2009 | Toshiba Satellite A100-S8111TD Notebook

2 Answers

No sound Acer 6930 XP

Your machine does use the Realtek audio codecs. Try to download the version available on their website. You have two choices - a standard AC97 or the AC97 HD (you may want to try this one first) one of them should be compatible with your equipment.

NOTE: The drivers available from Realtek have a different version number with them but they are basically the generic drivers for AC97 devices.

Apr 04, 2009 | Acer PC Laptops

1 Answer

No Audio device found on Toshiba Satellite A10-S177

Try downloading the AC97 HD Audio Codecs and reinstalling over what you have.

Post your results or any additional errors back here.

Mar 02, 2009 | Toshiba Satellite A10-S177 Notebook

1 Answer

No Audio device

You are NOT alone! There are a lot of folks trying to correct this issue. I have been somewhat successful, but not always. The last 'fix' is a VIA download that is supposed to work with all AC97 cards. I had the same issue with the computer I am writting this from, and the sound is working once again. So try the download at:

And PLEASE let me know if it works or not. The more information I can gather, the more I can help.

Mar 02, 2009 | Toshiba Satellite A10-S177 Notebook

2 Answers

My system cannot playback sound

u have to reinstall your sound driver
first uninsytll your current driver form device maanager.
also remove its application in add remove pro in conrol panel.
download from here and install it.

Nov 15, 2008 | Dell Inspiron 4100 Notebook

1 Answer

I can't hear any sound

Thats the wrong Drivers. Remove your Sound Drivers and Install this one: "SigmaTelTM STAC9767 AC-97 v.2.1" In Bios also set to Default settings, Release IRQ Settings. this should help with the Blue Screen. If you have problems uninstalling sound drivers check if you have an option to temp dissable sound chip in Bios. Hope this helps. More tips at

Oct 26, 2008 | Panasonic Toughbook 50 Notebook

1 Answer

Sound driver


It seems AMILO Pro V2000 uses Cirrus Logic CS4299 - XQ chipset for Audio.
Crystal WDM AC'97 Driver for ICH4 Driver Version: direct download: - Logic CS4299 - XQ


Mar 27, 2008 | Fujitsu Siemens AMILO Pro V2000 Notebook

1 Answer

Mic not working in 710 M

Hello poo.
Can I assume that your audio is still working? Let's look at a couple of things within your notebook.
1. Open Control Panel than open Sound and Audio Devices.
Click the Audio tab. What should be listed in both playback & recording is device AC97? Click the Voice tab. Same device should be there. Close all opened windows except Comtrol Panel. Open System.
2. Click the Hadrware tab, than click Device Manager.
Scroll down to Sound, video and game controller. Click the + sign to list all devices. Do you see the AC97? Is there any yellow ! points?
3.If you saw the AC97 in all places described & you have no yellow ! point the odds are your internal mic chip is defective.
The only way to fix this is through Dell & they would replace your mainbord in the notebook. However if you wish too I can explain how to uninstall your sound device driver & reinstall the sound/mic driver software just to make sure. Ready?
While still in Device Manager. Right click once on AC97. A small window will display, left click uninstall. Your notebook may ask if your sure. Click yes. Close all opened windows. Re-start your notebook. Right click on your desktop & creat a folder, name it AC97.
We need to go to Dell now. Click the link below.
You'll notice the page opends to your Inspiron 710m.
Click the + sign next to Audio. Click on STAC 9750 AC97.
The download page loads. Click the ( Download Now ) button.
You can either Run it now or save it in the AC97 folder you created. Once the download finishes. Close all opened windows.
Last part. Click the start button, than click run. Click Browse & open the AC97 folder click the file R90698.EXE. Click ok.
The driver software will start to install. Once finished re-start your notebook. To test your mic. Open Control Panel, open Sound & audio devices. Click the Voice tab. Click Test Hardware tab. Windows may run it's own little test befor opening the test page.
Now your at Microphone Test page. Follow the instructions.
If you heard yourself through the testing your mic is working.
If the testing failed..... Than we are back to a defective mic.
I hope this has helped.
If you have any more questions feel free to post them here.

Good Luck & kind Regards

Feb 29, 2008 | Dell Inspiron 710m Notebook

Not finding what you are looking for?
NEC LaVie S LS900/8E Notebook Logo

Related Topics:

220 people viewed this question

Ask a Question

Usually answered in minutes!

Top NEC PC Laptops Experts

Steven Wander
Steven Wander

Level 3 Expert

574 Answers

Martin Murray

Level 3 Expert

1614 Answers

Cindy Wells

Level 3 Expert

4718 Answers

Are you a NEC PC Laptop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides