Dell PowerEdge M820 Systems Technical Manual - Page 19

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Memory speeds of 1600MT/s, 1333MT/s, 1066MT/s, and 800MT/s are supported on the M820,

depending on the DIMM types installed and the configuration. All memory on all processors and

channels run at the same speed and voltage. By default, the system runs at the highest speed for the

channel with the lowest DIMM voltage and speed. The operating speed of the memory is also

determined by the maximum speed supported by the processor, the speed settings in the BIOS, and

the operating voltage of the system.

Table 8 lists the memory configuration and performance details for the M820, based on the

population of the number and type of DIMMs per memory channel.

DIMM

DIMM 0

type

RDIMM

PowerEdge M820 Technical Guide

Number

DIMM 1

DIMM 2

DIMMs

Speed (MT/s)

800

1066

∞

1333

1600

∞