I have an ASUS website bookmarked.
It is: ASUSTek Computer Inc. -Forum-
It takes me to ASUS Support and there is a motherboard section and you will have to enter in: P8Z68-V Pro and it should take you to users of your Mobo.
I would like to try to slow down the fan which came with my Antec V183 case which is installed into the top of the case. I downloaded SpeedFan, but I don't want to mess anything up, and am not sure how to do this. Any help would be appreciated.