I have a Dell Dimension XPS D233 that I want to upgrade. I have an adapter to put in my PII Slot1 so that I can put in a 370 Socket CPU. I bought the adadpter awhile ago and when I did I researched what I could put in it. Somewhere I remember reading that it had to be a PIIIE Coppermine not over 750. Anyone know where I can find out about this?