I have upgraded two PC's with the above including on-board sound. After upgrading I found the on-board sound to be unsatisfactory and have installed sound cards and attempted to disable the on-board sound. The ASUS manual shows three sets of three pins to enable\disable the on-board sound. The boards I received only have one set of three pins - with spots of solder where the other two sets should be. Does anyone know how to disable the on-board sound. I have posted to the ASUS forum and have had no reply. Please HELP! Thanks.