i have rampage 4 extreme motherboard, i recently completed building my pc and finished all the driver updates and window updates. but when the only problem is there is no sound, although it says in the device manager that the device is working properly im not getting any sound off my speakers (speakers are plugged in a 3.5mm green jack at the back of the pc) and not even a sound either in my earphones (plugged in the 3.5mm jack at the front). dont know whats causing this problem, i tried the speakers in another computer and its working just fine, as well as my earphones too.. if anyone knows this sort of problem and knows how to fix this, please do help me..