Intel CPUs come in more varieties, including Slot 1 (older Pentium IIIs and Celerons), Socket 370 (later P-IIIs and Celerons), and Socket 423 (early Pentium 4 chip; newer Socket 478 Pentium 4s aren't ready for the upgrade list yet). The simplest upgrade in theory, requiring the highest level of tech savvy in practice, is a straight chip-for ...
looks like i got myself a 478 and would have to splash for both mobo and cpu to upgrade to c2d Click to expand... There is no Core 2 Duo on the 478 Socket, it's on the LGA775 (T) Socket.