Just an update of a bit of success.
In the blue slots (CPU ID lists them as slots 1 & 2),
I've installed a Kingston kit KHX1600C9D3/4GX,
At 1.5 (stock memory voltage) with the Northbridge @ 2013.5MHz,
The sticks are stable @ 805.4MHz
FSB:DRAM @ 1:4
CL 9.0
tRCD @ 9
tRP @ 9
tRAS @ 27
tRC @ 36
Very happy with this board...