Overclocking Bad

You can upgrade your celeron with a p4. Here are a few rules to remember your "845" board only supports 400/533 front side bus that means no hyperthreading 800 FSB, also the oldest p4 "any less than the p4 2.0" don't work either so your choices are p4 2.26 to the p4 2.8 because you can only have p4 with the 512 L2 NOT the 1M of L2. somthing about the bios used with celerons is an older version in most cases the new celeron D may be upgraded with the larger L2 but that is not too clear at this point.