How to change timings?

[Fil1]

When i go into bios i go to memory configurations but i dont see cas to ras or anythign like that theres stuff like tras and its marked in NS. I want to change my ram to these timings 3-4-4-8. What do i change in bios? thanks

 

[Budman]

This should be listed the the manual that came with your motherboard.