finally got this mobo working.
but cpu patch seems have some problem.
even I moded with asus' cpu code, it still not work
do not support my b1/b2 es/retail Conroe in hand, only run at 100mhz fsb.
I can only use clkgen overclk a liitle. could not higher than 1.9Ghz with my x6800.

but. this mobo is definetly a very good overclker for ddr2.
totally free ram overclking feature, max vdimm=2.55v, sub_ram_timings etc...

my Team DDR2_1000 get ddr2_1220 4-4-4-12 with only 2.55v in bios.