I just got a desktop with i7-4770(non-k) and I installed 2x 8GB G Skill Ripjaws DDR3 -1600mhz to it and they run at 1333mhz, running the Jedec profiles
I've tried setting the XMP profile in Bios and it never seems to apply, always staying at 1333mhz
https://dl.dropboxusercontent.com/u/33930055/Gskill.PNG
The 8gb Adata stick preinstalled runs fine at 800mhz (single-channel) from its Jedec profile. (albeit a lower voltage)
https://dl.dropboxusercontent.com/u/33930055/Adata.PNG
I've tried setting the XMP profile in Bios and it never seems to apply, always staying at 1333mhz
https://dl.dropboxusercontent.com/u/33930055/Gskill.PNG
The 8gb Adata stick preinstalled runs fine at 800mhz (single-channel) from its Jedec profile. (albeit a lower voltage)
https://dl.dropboxusercontent.com/u/33930055/Adata.PNG