stay 1:1 FSB to memory while you adjust the other parameters.

MCH, ICHIO and Vdimm play roles in attaining max overclock besides vcore.

try MCH of 1.4x; ICHIO of 1.65 and Vdimm of 2.1 to 2.2 to attain 3.6 mhz using 9 x 400 FSB (CPU VTT set to 1.3)....you can adjust up or down from there to see if it helps or hinders.

use Uguru to adjust your voltages...cpuz vcore is fairly accurate for vcore readout...don't forget that cpuz conflicts with uguru when both are visible on the desktop...just minimize Uguru when you want to open cpuz.

once you got your final overclock then adjust your FSB to memory ratio to see how high you can get your memory...don't forget max memory speed means more stress so voltage increases might be necessary to hold it stable.

good luck!