When a computer fails to produce any sound, it is usually due to a missing driver. Drivers are instructions that tell the processor and operating system how to use a specific device built into the motherboard or installed on a PCI slot. Without the proper driver, the computer cannot use the sound card to produce sound. You can locate and reinstall the driver for any Dell brand PC
Instructions
Note the make and model of your Dell PC desktop or laptop. Look for this information on the front of your machine and on any label on the back of the tower or bottom of the laptop. Find your Dell Service Tag number as well. Dell produces dozens of different configurations for each main model, so you must know your specific configuration model number.
Go to the Dell Support website. Do a search for your specific make and model. Search for the driver packages for your computer. You can allow the Dell Support site to download and install a Driver Scan tool on some models. The scanning tool will search your computer's components and produce a listing of drivers for your machine. You can also look for the driver collections without this tool.
Find the Dell drivers listed for your on board sound card. Read the labeling carefully on these drivers. "Close" is not good enough in most cases. Each driver version is different in some significant way.
Click on the "download now" button for the right driver. When the program asks you whether you want to "Save" or "Run" the file, choose "Save." Save the file to your C:\Dell or C:\Drivers directory.
Open the driver file and click on "Run" or "Install." Some drivers will automatically deploy after you have downloaded them to your machine. If during this deployment, your computer discovers the driver is not correct for your sound card, you will see a message to this effect: "Device Not Found," or "Incorrect Driver." Go back to the Dell Support site and try another driver.
Go to "Start" and "Run." Type "dxdiag" into the Run box. When the diagnostic screen opens, go to the "Sound" tab. You should see your sound card listed if the driver was installed correctly. Click on "Test" to make sure your sound card is now operating. Check to make sure any external speakers are plugged into the green ports on the back of your tower; they are "powered," so make sure they are turned on. If the sound test fails, or the sound card is not listed, you still do not have the correct drivers. Return to the Dell Support site and try again.
Download a free program called "Everest Home Edition," if you are having trouble finding the correct driver. Everest will identify your sound card and might be able to provide you with a direct link to a driver download site.
Visit driverguide.com if you are still having troubles. Do a search in their listings for the sound card driver you need. Driverguide.com is a free service but you will be exposed to advertising.
Reboot after your sound driver passes the dxdiag test. Rebooting also works to finish the installation of sound drivers; if you think you have the right driver, but there is still no sound, try rebooting.
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