Just be sure the slowest chip is in the first slot so when the BIOS detects the CAS latency of the RAM it detects the slower speed, else you'll be in for system hangs galore ;).
You only need matched pairs when doubling your FSB speed (2x400Mhz FSB), otherwise DIMM's are happy as individuals. The only other technical reason for matched pairs no longer applies (64bit addressing on a 32bit bus).
You only need matched pairs when doubling your FSB speed (2x400Mhz FSB), otherwise DIMM's are happy as individuals. The only other technical reason for matched pairs no longer applies (64bit addressing on a 32bit bus).