Wow, 221 pages later I finally reach the end...

So I've got a 2140 while i wait on the 45nm quads to finally come visit. I've had this setup for about a month now and I've gotten it to 3.2ghz which is 400fsb. I'm not a total noob, but it IS my first time OC'ing an intel chipset, so I could use a little help plz.

My current settings are:
vcore 1.45
MCH 1.48
CPU VTT 1.35
ICH 1.32
DDR2 2.1
ICHIO 1.65

Now 3.2 is solid, nice and stable. But if i go to get to about 410 uguru locks my computer up. It won't apply without dieing. Have I reached the end of this chip, the fsbwall, or do i need to up the voltage somewhere? Temps are fine, cpu is hitting about 44 in orthos and pwm is about 48. This is vista x86 btw.

Thanks guys!