togermano, on 01 February 2013 - 14:52, said:
How do I figure out which CPU is the last p4 proccessor that will work with this motherboard?
It will either be Socket 423 (for early Pentium 4s), 478 (most common), or LGA 775 (newest). If it's an LGA 775, you will be able to upgrade the processor to a Core 2 Duo or Quad; however, judging by the fact that you have RDRAM, it's very likely that your motherboard has a Socket 423 or maybe 478, in which case, it's not worth upgrading the processor. Run CPU-Z to make sure.