MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode.
If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.
Xeon E3 series processors require ECC Unbuffered memory. Registered ECC memory is not supported.
Memory will run at optimal speed and voltage depending on processor model.