Can you plug a socket 754 cpu into a socket 940 mobo ?


A freinds upgrading and he wants to know this.

He just wants a pc that will last a bit longer are their any 940 mobos
out ? and when you plug or if you can plug a 754 cpu into it will it
be dual channel or do only 940 cpus do dual channel any other draw
backs benifits ?

Thanks.