well guys, finally i got my problem solved... before my ddr clock setting in bios is "auto", so when i increase the fsb, the ddr also increase in a 4:5 ratio, then i change my ddr clock to 166, and voila... when i increase fsb, the ddr increase in a 1:1 ratio!... at the moment i managed to get in windows in 3,6ghz, but when i play some games (usually FM2005 and NFS underground) sometimes it hang.. when i lower fsb to 185, it run smoothly... dont know what the problem is... should do prime95 test first i think to find out exactly what's wrong....
one more thing, what does "spread spectrum" mean? it has option enabled/diosabled on my bios...
thanx again guys! it really gives me a lot of experience watching the forum...
