How do I set RAM timing on ASUS P6X58D-E?

I've set RAM timings in the BIOS of an EVGA MoBo before but this thing is completely different and I have no idea what I'm supposed to change.

I got G.Skill Ripjaw DDR3 RAM 1600 and the timing should be 9-9-9-24-2N (not sure what the 2N is) but I'm not sure what I'm supposed to change in my BIOS to meet this b/c there are more settings in the Timing Control than I'm used to.

Looking in the book that came with my MoBo there is 1st, 2nd and 3rd information all with several subsettings and I have no idea what to change  

Thx