Which two servers support memory extension technology and give list？（）

A. 800 MHz
B. 900 MHz
C. 1066 MHz
D. 1333 MHz
E. 1666 MHz

A. Dual-rank DIMMs are not supported.
B. 16-GB DIMMs are too slow.
C. The largest DIMM an Intel 55xx or 56xx CPU can address is 32 GB
D. The memory bus would be too long.
E. The blade would run too hot.