MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. Kingston offers "K2" kit part numbers for Dual Channel mode.
This system only supports one single-sided DDR400 module per channel. If double-sided DDR400 modules are used and the channel limitation is exceeded, the memory will only run at 333.
Systems using 800MHz FSB processors should use DDR400 (KVR400X64C3A/xx) parts.
Systems using 533MHz FSB processors should use DDR333 (KVR333X64C25/xx) parts.