UNOFFICIAL BIOSTAR TPower I45 M/B

[ghost_recon88]

make sure you are using the correct rear panel sound output port for your speakers...i presume you are using dual speaker system so you want to use the light green port...refer to page 5 of your manual, section "1.4."

if that does not work, do the clear CMOS.

I cleared the CMOS and pulled the battery, still no change

Only devices I don't have installed is my ethernet and the HDMI audio on my HD 4850.