anyone here can give some tips how to keep high fsb stable..

one of my friends going for nforce2 competition (nf7s vs dfi infinity/lpb)

he have done all the mod:
- vdd booster
- vdimm = vi/o
- vref = vtt

spec :
winbond bh6 dual channel
barton unlocked

his fsb still stuck @ 243MHz prime stable

he is using 3d fire right now...