I cant get sound from my cpu when I click on the speaker icon It says no audio ouput device installed, operating on windows vista/ intel pentium D processor 820/T5224 desktop PC any suggestions?
Assuming that you have the emachines T5224 which has got a board with a D945G Chipset, I still cannot give you the exact link to the correct audio driver since I do not know the complete model of the board.
What you could do is to try to re-install the drivers that came with the system CD or DVD.
Another alternative is to go o this link and try to see if it detects your chipset and provide you with the appropriate driver download: http://support.intel.com/support/motherboards/desktop/detect.htm
Hope this will be helpful.