I have 2 kingston blue hyper 1600 but in cpuz it shows 667mhz. i read on another thread that i have to go to bios and change speed from 1333 to 1600. I did that and it still shows 667Mhz
CPU i5 3570k
MOBO ASUS Z77 pro
Cooler Master 212 hyper evo
Did not get much help from memory section so thought i'd try here
The default ram speed on an asus motherboard is 1333Mhz.
You will have to go to the bios then advance settings then go though all the menus. in one of them(I think AI Tweeker) change the ram speed to 1600mhz.
Ai Tweaker -> Ai Overclock Tuner and Enable the X.M.P. profile.
You can do it manually, like timarp000 suggests, but you would need to set the timings manually, as well (and possibly the voltage too, if it's 1.65V RAM), not just the speed. The X.M.P. profile does it all automatically.
You need to set the voltage to 1.65V for 1600 if you haven't. Just simply changing the speed might not work (and that appears to be the case here, unless the screenshot above is correct, and it really is running at 800Mhz).
Other than that, I don't really know what else to tell you, at this point. If the X.M.P. option doesn't exist for you (and I really don't understand how that's possible) and you can't set everything manually (and it stay that way), there's really nothing you can do.
The pics don't really tell me much because you don't show the options that Ai Overclock Tuner gives you, just that it's on Manual currently (which I already knew), and I'm not even sure what you were trying to show me with the second one. The RAM voltage was at 1.665V though, which is too high.
The first one does say that the "Target DRAM Speed" is 1600Mhz, though, unless that was before you saved and exited. That, along with the 1.665V for the RAM tells me that it is running at 1600 (again, unless that was before you saved and exited).
Also, your screen shot that I re-posted earlier clearly shows that it is actually running at 1600. Look at it again. 800Mhz is 1600 RAM (800 x 2 = 1600).