DDR3 on ASUS P5KC

[perez_chuck]

Hello, I bought this: G.Skill Ripjaws X DDR3 1333 PC3-10666 4GB 2x2GB CL7

But it only runs at 1111Mhz single channel or 800Mhz dual channel.
My bios is 1001. help!

Thank you!

[Tradesman]

What CPU and speed are you running? May need to upgrade the BIOS to 1203, which can be found here:

http://www.asus.com/Product.aspx?P_I...specifications

Then set up the DRAM manually, speed 1333, your base timings (not sure what set you have but prob 7-7-7-21, DRAM voltage 1.5 and CR (Command Rate) 2