Dell PowerEdge M820 Technical Guide - Page 19
DIMM 0, DIMM 1, DIMM 2, Number, DIMMs, Speed MT/s
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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 type RDIMM DIMM 0 SR DR QR SR SR DR QR QR QR SR SR SR DR QR QR QR DIMM 1 SR DR DR SR DR QR SR SR DR DR QR QR DIMM 2 SR DR DR DR QR Number of DIMMs 1 1 1 2 2 2 2 2 2 3 3 3 3 1 2 3 800 Speed (MT/s) 1066 1333 ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ 1600 ∞ ∞ ∞ ∞ 19 PowerEdge M820 Technical Guide
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