yeah, all of your memory will run at the same speed, which will be the maximum speed of the slowest stick... so if you have a stick of 333MHz RAM and a stick of 400MHz RAM, they will both run at 333MHz... This is just fine, it wont slow things down - in fact, you will have a little increase in performance due to having more RAM... but I would say that if you can save a few bucks and get another stick of 333MHz (pc2700) RAM, that would be a better plan of action - then spend the saved cash on some beer
