How to ser XMP in asus z77 baord?

[cooldudesubho]

Hey i got this ram.
http://www.corsair.com/us/memory/intel-memory-upgrades/dual-channel-intel-memory-upgrade-kits/vengeance-4gb-single-module-ddr3-memory-kit-cmz4gx3m1a1600c9.html

I have asus p8z77-v board.My i am getting 1330 speed onlu.So i went in bios to set XMP.I see is another way to set it to 1600mhz.Which is through memory frequency drop down box.

So should i use xmp or just 1600 through the drop down box?
i have i5 3550 cpu.

 

[rolli59]

Try XMP.