let me see if i can find the link if thats how you wanna go

But having it on a different machine is going to cause some lag and delay the load times.
I know you'll have to edit the config.php file to read from the second database, its something like slave server maybe, i dont remember off the top of my head.
Then you'll need to create your slave database and it has to have the same name as the orginal so it'll have to be on a different machine/hosting account then the orginal i beleive.
Here is the link about replication:
http://dev.mysql.com/doc/refman/5.1/...mentation.html
Good luck