Ok if you guys say its best ill stick to it then :P

My setting at the momento are:

Advanced CPU Features:
CPU Clock Ratio ................................ [20]
Intel(R) Turbo Boost Tech ...................... [Enabled]
CPU Cores Enabled .............................. [all]
CPU Multi Threading .............................[Disable] - Enabled if you can boot and/or temps ok may need extra vcore
CPU Enhanced Halt (C1E) ........................ [Enabled]
C3/C6/C7 State Support ......................... [Enabled]
CPU Thermal Monitor ............................ [Enabled]
CPU EIST Function .............................. [Enabled]
Virtualization Technology ...................... [Disabled]
Bi-Directional PROCHOT ......................... [Enabled]

Uncore & QPI Features:
QPI Link Speed ..............................[x36]
Uncore Frequency ............................[x16]or x17, x18 (always 2x +1 or +2 of memory Multi)

Standard Clock Control:
Base Clock (BCLK) Control .......................... [190]
PCI Express Frequency (MHz) ........................ [100-102]
C.I.A.2........................................... .. [disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mv]
PCI Express Clock Drive ................... [900mv]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]

Advanced DRAM Features:
Performance Enhance ...................... [Expert]
Extreme Memory Profile (X.M.P) ........... [disabled]
System Memory Multiplier (SPD) ........... [8]
DRAM Timing Selectable (SPD) ............. [quick]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................[9]
tRCD ..................................[8]
tRP ...................................[8]
tRAS ..................................[24]
CR.....................................[1]
B2B.....................................[auto]


Advanced Voltage Control:
CPU Intel Core i7 920 D0 Stepping
Load Line Calibration ................. [enabled]
CPU Vcore ..............................[1.3]
QPI/VTT Voltage 1.150v .................[1.34]
CPU PLL 1.800v .........................[1.6]
PCIE 1.500v ...........................[1.5]
QPI PLL 1.100v ........................[1.16]
IOH Core 1.100v .......................[1.100 - 1.200]
ICH I/O 1.500v ........................[1.5]
ICH Core 1.1v .........................[1.1]

DRAM
DRAM Voltage 1.500v .............. [1.64]
DRAM Termination 0.750v.......... [AUTO]
Ch-A Data VRef. 0.750v ...........[AUTO]
Ch-B Data VRef. 0.750v ...........[AUTO]
Ch-C Data VRef. 0.750v ...........[AUTO]
Ch-A Address VRef. 0.750v ........[AUTO]
Ch-B Address VRef. 0.750v ........[AUTO]
Ch-C Address VRef. 0.750v ........[AUTO]

I ran Linx 20 and its perfectly stable