I have an Dell Dimension E510 running windows XP. I have 5.1 surround sound speakers that were working fine until recently. Only 2 speakers work; left and right. None of the others have sound. I have SigmaTel Audio.

it must besome problem or config problem in the pc
check the sound setting of your pc by clicking the volume icon properties

check the sound software is instaled or not or
check mute is on or not

1)Check whether sound is enabled in bios.

2)Install Latest drivers from support.dell.com

3) Boot From the ResourceCD to Run Dell Diagnostics

1. Insert the ResourceCD in the optical drive, and restart the computer.

2. Tap the <F12> key during startup until the One Time Boot menu appears.
Note: If the One Time Boot menu does not appear, restart the computer and try again.

3. Press the <Down Arrow> to highlight Boot from CD, and press <Enter>.
4. In the ResourceCD menu, select Run the 32 Bit Dell Diagnostics, and press <Enter>.
5. The Dell Diagnostics screen appears.

Run sound test

Maybe a short or weak audio cable from receiver to PC.

It sounds like you need to define the speakers to the PC. Find the icon that controls your Sound Card and dabble with it.

It is very likely that you have a virus. You should run a scan on your computer with your current Anti-virus software or find one online. I would recommend AVG or Windows Defender.

Try going to dell and down loading an upto date sound driver and see if that clears up your problem. If not, you have an internal problem with your sound device.


Good Luck

Fehdi

to localised your problem, try to plug your speakers to other sound source like mp3 player ,stereo system. if still no sound coming from it,your problem is within the speaker system. perhaps the audio power amplifier ic inside, need to be replaced.

If the sound card is built in then go to Dell support site and download the drivers - if that doesn't work it is probable dead

replace it with a PCI card

Dear Steve,
you can download the sound drivers from this site, there is 3 sound drivers available for Dell E510 , i hope one of them will work with your PC.

http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&ServiceTag=&SystemID=DIMENSION%205150/E510&os=WW1&osl=en&catid=&impid=


Cheerup and Be Happy always