this conroe L or e21xx series has known fsb wall issues.. as we can see, these processors has almost same performance as the c2d, besides the 1mb l2 cache.. but many e21xx processor failed to go past 400fsb at any multiplier.. whatever u set, it might just max at around 389fsb..

i've tried 3x e2160, 2x e2140 and only 2 ( 1x e2160, 1x e2140 M0) of them manage to go beyond 400fsb..

i think there is a reason why Intel decides to use pentium dual core name.. instead of c2d..