Here is what I use for the memory timingso n mine @ 160mhz FSB.
System Performance - Turbo
DRAM Clock- 133mhz
DRAM Timing - Manual
SDRAM Cycle Length - 2
Bank Interleave - 4 Way
DRAM PreChrg to Act CMD - 2T
DRAM Act to PreChrg CMD - 6T
DRAM Active to CMD - 2T
DRAM Queue Depth - 4 Level
DRAM Drive Strength - Auto
DRAM Command Rate - 1T Command
DCLKI Timing - 0 ns
DCLKO Timing - 0 ns
Fast R-W Turn Around - Enabled
Continuous DRAM Request - Enabled