OK I'm looking to use the Asus motherboard P5P800 and perhaps the Intel Pentium 4 640 Prescott 800MHz FSB 2MB L2 Cache LGA 775 EM64T Processor. Both of these equipment are of the same chipset (LGA 775). However, the mb only has 1mb of L2 cache while the processor has 2mb. What gives? Are they compatible? Thanks.