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26 Oct 2012  

Windows 7 32 bit
Dell Dimension 3000 No sound but everything installed correctly.

I hope someone can help. I'm not fully knowledgeable with computers but know the basics.
I bought a second hand Dell Dimension 3000 running Windows 7.
I have no sound.
The drivers are installed in Device Manager (Realtec AC'97), and also (Uniplex Half Modem) both under sound, video controllers. There are no exclamation marks in device manager. All drivers are up to date.
Dell diagnostic and Microsoft Fix it both say everything is ok.
There is no sound from internal speaker. I tried external speakers via green jack at back & front of machine but there is no option to select these speakers.
If I try to play music then nothing happens.
When I access the sound option there is a green 'equalizer bar' which goes up and down to tell music is playing...but I can't hear anything.
I have checked and mute is not selected-volume is set to 100%.
I opened the machine and behind the jack plug seems to be closed with no removable parts.
I downloaded the latest Audio Driver from Dell but it says its not compatible with my OS.

I think I've covered everything I've done.

My System SpecsSystem Spec