Question about Dell Latitude C400 Notebook

1 Answer

Audio Problem Hi, I have installed a USB2.0 PCMCIA card into my Dell C400 laptop. My sound no longer works and I cannot even find the device in the device list. I have tried re-installing the drivers fro the audio, however, this does not resolve the problem. Any advice would be appreciated! Chris

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,961 Answers
Re: Audio Problem

Remove the card and use system restore in accesories to see if you can restore to a time previous to installing the card. If the problem persists, you can run dxdiag, go to start>run, then type dxdiag and hit enter, go to the audio tab and it will point to the problem

Posted on Mar 18, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

I want restore all setting of my laptop dell c400 bcoz my speaker is not working...i change many window xp....plz help me

If yoi want to do a system restore...go to start then all programs...accesseries...system system tools you will see system restore..and if you want to do a factory image restore then you need a restore or recovery disc..insert that restart the conputer f12 select cd-dvd rom hit enter then follow the instructuons to do the restore...and if sound is not working then check the drivers for the sound in device manger

Aug 23, 2011 | Dell Latitude C400 Notebook

3 Answers

Does this laptop have a built in wireless card?

No This is a reasonably old system, You will need to use either a PCMIA wireless card, or a usb wireless adapter. Both of these can work with this system.

Feb 04, 2011 | Dell Latitude C510 Notebook

1 Answer

My dell c400 has no sound device or has sound device problem

Go to and click on the technical support link. Choose the Support for Home Users and then click on Drivers and Downloads. Choose to input your service tag (can be found on the bottom of your laptop, if not then choose the model) and then your shown the drivers for your OS. Click the blue circle with a white down arrow beside Audio and then click the download. Download and then install the Crystal driver and when done reboot. You should have sound now.


Nov 10, 2010 | Dell Latitude C400 Notebook

1 Answer

A distorted sound is coming from my speakers even if i connect speakers

It is a possibility that you are getting feedback from a device that is near by. Possibly a cell phone or other device. I would recommend moving the computer to a different location and removing all electronic devices from beside the computer, then reconnecting speakers.

It is also possible that you have a bad sound card. If that is the case, you will need to purchase another sound card and replace the old one. I have included instructions on how to replace your sound card below:

Here is a site where you can purchase the sound card you may be in need of:

There are other sites such as Ebay where you can also purchase the sound card. The type of sound card you need is a PCMCIA Sound Card for an Acer Laptop.

Here are instructions on how to install a new sound card:
    Installing a PCMCIA Sound Card in Your Acer Laptop
  1. Step 1 Locate the PCMCIA card slot on your computer. On an Acer laptop, the slot may be either on the left or the right side of the laptop.
  2. Step 2 Remove the PCMCIA card cover by pressing the "Eject" button and pulling the cover out.
  3. Step 3 Insert your PCMCIA sound card with the connectors facing in and the upper label facing up. Some PCMCIA cards will have an arrow to make it easier to orient the card correctly.
  4. Step 4 Press the PCMCIA card gently into place.
  5. Step 5 Windows will recognize the PCMCIA card and search for the needed software.
  6. Step 6 If your sound card came with an installation CD, insert it in the CD slot and follow the instructions to install applications and utilities for use with your new sound card.
    Installing a USB Sound Card in Your Acer Laptop
  7. Step 1 Turn the computer on.
  8. Step 2 Plug the USB sound card into the appropriate USB plug on your laptop.
  9. Step 3 Wait for the computer to recognize the new USB device.
  10. Step 4 Insert the sound card manufacturer's CD if prompted to do so.
If a sound card is not the issue, then you possibly have circuitry issues on your laptop motherboard. For this issue, you may need to consult a certified technician at your local computer repair shop.

(If you are not a professional or are used to opening your laptop, I would recommend taking it to a local computer repair shop for a certified technician to look at this issue. Do bare in mind if you have a warranty, opening your laptop and not being a certified professional would void any warranty agreement you have with your manufacturer)

Jan 08, 2010 | Acer Aspire 3000 Notebook

2 Answers


Here are all drivers for Dell Latitude C400

Aug 10, 2009 | Dell Latitude C400 Notebook

1 Answer

There is no sound coming out from my laptop though the sound device was installed

Go to Control Panel - System - Hardware - Device Manager and chck if the sound driver is OK, if you have a yellow ? against the audio driver, it mean the driver is not installed or the wrong one was installed.
If the sound driver is OK the check the MUTE switch in the audio settings, untick it if the mute has been selected.

Apr 30, 2009 | Dell Latitude C400 Notebook

1 Answer

Sound card

The sound cards in the laptops usually they are built in on the motherboard and can not be replaced. If you want to add better sound to your notebook you can connect an external device like Sound Blaster Audigy 2 ZS Notebook PCMCIA Sound Card to get better sound performance to your laptop.

PS: Your laptop must have an PCMCIA slot available

Oct 06, 2008 | PC Laptops

1 Answer

Latitude c400 no longer detects internal wireless card

device driver's are different from one operation system to need to find the driver for the current operating system...

Sep 06, 2008 | Dell Latitude C400 Notebook

1 Answer

Dell latitude c400 sound probel

First check the sound settings, it could just need adjusting. If the settings are correct, then you have a driver glitch, uninstall the sound drivers from the device manager, then reboot. The machine will find the sound card and reinstall the drivers automatically. Then check Dell's support site for updated sound drivers.

Aug 13, 2008 | Dell Latitude C400 Notebook

Not finding what you are looking for?
Dell Latitude C400 Notebook Logo

Related Topics:

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell PC Laptops Experts


Level 3 Expert

1038 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Donna Sander

Level 2 Expert

193 Answers

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

Answer questions

Manuals & User Guides