Motherboard limitations?

[aussiejunior]

Hey all I have seemed to stumble upon what I beleive is a motherboard limitation.
Teh rig in question is an amd m2n sli deluxe 570 motherboard
amd 4600x2 cpu
2gig ddr2 1066 corsair dominator ram
8800 gt vid card ( I did have twin 9600's but it was really jerky and such so I moved back to one card to give the cpu an break lol)
750w psu

Now my main problem is that I cant even get the ram anywhere near it's rated speed. I know the motherboard states it supports ddr2 800 as it's max but when I overclock the system I cant even get the ram to boot at a stable ddr2 1ghz

The ram settings are as such
5,5,5,15,22 @2.2v