CPU-Z reports the same details for my E4400
I have now used the following
Bios 16
sli-ready memory not detected (i have 3 1gig strips)
cpu operating speed UNLINKED ( very important unless you have very fast memory)
cpu core voltage 1.4v
multiplier 10X
MEM (DDR2) 800 (running at its native speed)
and in advanced bios features\cpu feature
eist function disabled
thermal control enabled
limit cpuid maxval disabled
c1e function disabled
execute disable bit enabled
Front side bus speeds
801
900
1100 all no posts
1200 posts after a hardware reset
1266 no post
1300
1333
1340
1360 all post and load xp
1400 posts but fails to load xp and re-boots
I have defauts for all other settings
apart from onchip audio and onchip lan both are set to disabled (I have no use for them)
I currently have the system set to fsb 1400 multipier 9X voltage 1.4v
Hope some of the above works for you, its a tricky board to overclock using the E4400 due to the large gaps in finding a working fsb, and especially for anyone with a later edition of the E4400.
which I have read may not overclock as well, it may be worth trying a lower multiplier to allow the FSB to be pushed higher
i have left the memory running as detected which has rather loose timings for now, and will not be overclocking it.