I have aquired an ALR Revolution 6X6 server, which will support up to 6 Pentium Pro processors. It came factory with a pair of 200 MHz/512K cache processors. I have a pair of 200 MHz/256K cache processors spare. My question is, can I use both cache sizes on the same board? Can I perhaps get away with running the two 512 chips on one processor board, and the two 256 chips on another. The system holds two processor boards, three sockets on each. You are supposed to fill one board before starting on the other, but the factory configuration is one processor on one board, and the second on the other. Thanks for the help!