Your first suggestion worked, thank you. After reset it said "OC failed, press F1 to go into setup." I loaded defaults and for now its showing both sticks of RAM.
I have a set of DD3 which is 1.5v. Do you think its safe to run 8 gigs of 1.65v and 8 gigs of 1.5v RAM simultaneously? Cheers.
You can run it but you can get random crashes. Your system can crash in the interval Of one day or in the interval of one year you can't say.