so here are the exact settings on everything
cpu 200x21 =4200
ram 2:8 to achieve 1600mhz 9-9-9-24-2t
qpi - 4.800gt link speed full speed
pcie freq 103
Uncore x16 or x18
all powersaving off
voltages
LLC 100%
CPUVcore- 1.3875 (which should be more than enough for 4,2ghz on d0 step i7 950)
DIMM- 1.65
CPU VTT 1.35
IOH Vcore- 1.3
QPI PLL 1.35
IOH/ICH IO voltage- auto
CPU PLL vcore- stock is 1,8 tried bringing up to 1.9 and 2.0 didnt see a diffrence, at 1.6 i saw a slight change but it might have just been a flook
ICH vcore- auto
DIM DQ VREF- auto
i've changed every setting possible now, so I'm starting to think this chip just won't accept anything under 1.45vcore.
which would suck because that means my highest possible OC is a 4,4ghz before voltages start to become dangerous.