processor swapping

I have a dimension 8300 with a 2.8 ghz ht p4 and an optiplex gx280 with a 3.4 ghz ht p4. is it possible to swap the 2.8 with the 3.4? I don't care about putting anything in the gx280, but if I can get a faster processor in my 8300 it'd be nice. If this is possible, could anyone also link the best tutorial sites for such a thing? Thanks much.

>>4
Fucking goddamn truth.  Out of ~500 machines, we always get 5-10 A WEEK that won't boot after being shutdown for the weekend.  That's ri-goddamn-diculous.  It's the #1 reason I hate Mondays.  To make it worse, I'm required to get replacements from Dell (obviously I keep ~20 spares on hand).  Saging because I fucking hate Dell.