Whats the difference between a intel 875p cpu and a 865pe? I bought a P4P800 Deluxe MoBo and want to put a 2.8 prescott chip in it, but im not sure if it will work. MoBo says it works best with the Intel 865pe. Anyone?
2.8 Prescott should work fine in your board. 865PE and 875P use the same core, the 875P has a pin grid with extra pins for ECC memory, which you don't have anyway.
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The 2.8e (prescott) chip adds little to the 2.8c, except heat. Be sure you want the slower, hotter chip, before you spend the cash. The northwood 2.8c would be a better investment, would be less taxing on the motherboard bothe power and heat wise, and in many apps offers better perf.