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No sound device after installing Win7 on DELL inspiron 1420

by Vusak / August 18, 2009 6:30 PM PDT

I just install fresh new window 7 on my dell ispiron 1420, but then no sound come out from my laptop.
Before this I use window XP.
I already install the sound device for my laptop but, error message comes out saying no sound device installed or maybe it's used by other application. Help please

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What drivers did you use?
by Kees Bakker / August 18, 2009 6:43 PM PDT

- the original Windows XP drivers from Dell from the original driver CD
- downloaded Windows Vista drivers from Dell for this laptop
- downloaded Windows 7 drivers from Dell for this laptop
- Windows Vista drivers from the makers from the components (that you determined with Everest or Belarc)
- Windows 7 drivers from the makers from the components (that you determined with Everest or Belarc)
- other

We don't know, because you didn't tell. Just "the sound device" doesn't say much, if anything.

- What version of Windows 7 did you install? The release candidate from February, downloaded from the Microsoft site? Or some cracked version from a P2P network? There's no retail version in the shops yet, is there?



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Same Problem
by Mysteir / November 11, 2009 8:55 PM PST

Has anyone figured this out yet? I've installed windows 7 and have the same problem - no sound.

Dell don't seem to have any audio drivers available for windows 7 and when I try to download the sigmatel audio driver for vista, I get an "unknown error" when installing.

Any help would be much appreciated.

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I can't try this for you.
by R. Proffitt Forum moderator / November 11, 2009 9:18 PM PST
In reply to: Same Problem
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My sound drivers came from Microsoft
by Ol Rod / November 13, 2009 10:51 AM PST
In reply to: Same Problem

I realize my old homebuilt will not be like your Dell, I had integrated Realtech AC'97 sound card. When I first installed I had no sound, but after I got Anti-Virus installed and got online, Windiws updates identified my hardware and downloaded sound drivers, next time I restarted I had sound. Afraid this won't help you ,but that's what worked for me.

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Check your drivers
by TaraS_WinTeam / November 24, 2009 3:09 AM PST
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Install your original sound driver from the DVD
by ianchai / March 31, 2010 1:34 PM PDT

I found that if I used the original sound driver from the "Drivers and Utilities" DVD that came with the Dell Inspiron 1420, it works.

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No sound device after installing Win7 on DELL inspiron 1420
by smashleo / December 7, 2010 2:38 AM PST


hi there, had the same problem and searched for a while on the web; this worked for me:

1.Downloaded from DELL's support page R171786 (sigmatel audio)
2.execute the file and notice the place the files are extracted to
3. go to your device administrators from windows and look for HIGH DEFINITION DEVICE
4. choose update driver and then choose local and select the files you extracted on step 2
5. it will reboot after update and voila!

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Error code 110
by unomos / April 15, 2011 5:49 AM PDT

Hi, I am trying to execute the R171786 file but I am receiving an error code 110 saying that it did not unzip successfully. Could you please help me get past this stage? I am running Windows 7 Ultimate 32 bit that I recently upgraded from the Vista Home Premium 32 bit.

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Tried Downloading a "Good" Version Of That File?
by Grif Thomas Forum moderator / April 15, 2011 9:08 AM PDT
In reply to: Error code 110

Try again.

Hope this helps.


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