This is hindering ya OC mate,

CPU PLL Voltage: AUTO --> set 1.56
FSB Termination Voltage: --> set 1.26
DRAM Voltage: 2.1 (but have tried all the way up from 1.8 in .2 increments)
NB Voltage: AUTO --> set 1.26
NB GTL Reference: AUTO
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO

Too much voltage isn't always better... and AUTO overvolts BIG TIME !!

And why don't you run 445 with 1066Mhz on the ram (more bandwith , lower PL etc...)