hi all,
i'm a new in this field so forgive me my qustions.

With the default speed of the CPU i can put my ram to 2000Mhz.
but with this current speed the max of my ram speed is 1683.
the next speed is 2000 windows does not boot!
i don't know what i have to change to make it work


any help?
and also any advice to tweak these setting, i will be glade

i7 920 D0 Batch 3849A866
Asus P6T Deluxe V2 buis 406
RAM 6GB OCZ Blade DDR3 2000 cl9,
Code:
CPU Ratio : 19
SpeedStep : Disable
BCLK : 210
PCIE : 101
DRAM: 1683
UCLK : Auto
QPI : Auto

DRAM Timing : Auto

CPU Volt : 1.23125
CPU PPL : 1.96
QPI/DRAM : 1.36875
IOH : 1.22
DRAM Bus  : 1.66

CPU Differential Amp : 800mV

left is AUTO

C1E sUPPORT : eNABLED
HT : Enabled
C-STATE : Enabled
C Sate : Auto