jaquith said: DDR = Double Data Rate, so if it's showing 800 MHz X 2 = 1600 MHz which is rated speed. I would assume that RAM shows XMP-1600 under the SPD tab.
jaquith said: In the Memory tab if it says "DRAM Frequency 800 MHz" then you're running 1600 MHz.
jaquith said: Yep, 100% you are running 1600 MHz 9-9-9-24-2T!!!