sound issues on new build

[oddjob]

after installing win 7 on the new build i cannot get my speakers to work at all, i am using the onboard sound and have installed the drivers from the mobo install disk. I have tried unistalling drives and rebooting and reinstalling, deleting the devices in hardware devices, the volume is not muted anywhere at all . When i plug the speakers in i get a pop up stating that i have plugged something in and if i go into the installed software it shows a jack inserted into the green port , if i test the speakers from within the software it shows it testing the speakers but i still get no sound.I have even looked in the bios to ensure on board sound is enabled so i am almost ready to pull the board and send it back as i cant think what else it can be

spec of pc is

amd 965
asus m4a88td-m evo
8gb ddr3 1600
gtx 570 graphic
60gb ocz ssd
1tb samsung spinpoint

have now reinstalled windows to see if it was possibly that but it has made any difference

[paul92]

make sure that its set to the correct output in the control panel i had this issue when i started using HDMI audio then switched back to the TRS. Its most likely trying to output it through the wrong connection

[oddjob]

have checked and the sound out put is set for speakers and speakers are set as default device , as mentioned before when a speaker is plugged into a jack the realtek software displays a pop up stating a device has been connected and when i open the program it shows which jack it is plugged into so beginning to think it is a mobo fault

when i reinstalled win 7 i decided to downloaded earlier drivers from asus and realtek websites and neither of them gave me sound.When configuring the speakers and it plays a sound and the levels show up in the volume mixer

[Jasp]

May sound like rather a daft question but do the speakers work? have you tried a pair of headphones or something instead.

[oddjob]

its not a daft question at all as its the obvious things like that people tend to overlook ,the speakers definitely work as they come from my old pc but i have checked them on another pc and my laptop and they work fine