I finally got this to work. I have a GTX260 card so all memory in system is DDR3. I reset the Cmos again but while resetting I moved all ram around.
moved 1 to slot two and 2 to slot 1, 3 to slot 4 and 4 to slot 3, 5 to slot 6 and 6 to slot 5. Then re entered Cmos/Bios and worked just fine...