MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. Kingston offers "K2" kit part numbers for Dual Channel mode.
If three modules are installed, the system will not boot.
When running at 800MHz FSB, DDR333 will clock at 320MHz only.
This system only supports 4 banks of memory. If two double-sided DIMMs are used, the 3rd and 4th sockets are disabled.