Memory for a Supermicro - H8QIi-F Motherboard- Kingston Technology

MBD-H8QIi-F-B; MBD-H8QIi-F-O

MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. Kingston offers "K2" kit part numbers for Dual Channel mode.
Mixing DDR2-400 or DDR2-533 Registered DIMMs with DDR2-667 or DDR2-800 Registered with Parity DIMMs is not recommended.
Mixing x4 and x8 modules is allowed, however not within the same bank.

Only systems with AMD's Opteron Socket F 45-nm CPU can use the DDR2-800 part numbers.
There is a limit of eight ranks for each processor using DDR2-667 and DDR2-800. If this limitation is exceeded, the memory will clock down to 533MHz.