ok i dont know y my ram is at 400 Mhz
when it can be at 1066
Because you set it that way?
There are other dividers you can try to get it to 1066, but seriously... cmon man. You set it up like that, it's going to run like that.
Also.. It's DDR, so it's not at 400 MHz, it's 800 MHz effective. You are looking for 533 MHz.
Read the overclocking guide in the overclocking section.