Dell PowerEdge R620 Manuel du propriétaire télécharger pdf (Page 44)

Processor 2 channel 0: slots B1, B5, and B9

channel 1: slots B2, B6, and B10

channel 2: slots B3, B7, and B11

channel 3: slots B4, B8, and B12

The following table shows the memory populations and operating frequencies for the supported configurations.

DIMM Type DIMMs Populated/

Channel

Operating Frequency (in MT/s) Maximum DIMM Rank/

Channel

1.5 V 1.35 V

UDIMM ECC 1 1333, 1066, and 800 1066 and 800 Dual rank

2 1333, 1066, and 800 1066 and 800 Dual rank

RDIMM 1 1600, 1333, 1066, and

800

1333, 1066, and 800 Dual rank

1066 and 800 800 Quad rank

2 1600, 1333, 1066, and

800

1333, 1066, and 800 Dual rank

800 800 Quad rank

3 1066 and 800 Not Applicable Dual rank

LRDIMM 1 1333 and 1066 1333 and 1066 Quad rank

2 1333 and 1066 1333 and 1066 Quad rank

3 1066 1066 Quad rank

General Memory Module Installation Guidelines

This system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipset

architectural configuration. The following are the recommended guidelines for best performance:

• UDIMMs, RDIMMs, and LRDIMMs must not be mixed.

• x4 and x8 DRAM based DIMMs can be mixed. For more information, see Mode-Specific Guidelines.

• A maximum of two UDIMMs can be populated in a channel.

• Up to two quad-rank RDIMMs and up to three dual- or single-rank RDIMMs can be populated per channel.

When a quad-rank RDIMM is populated in the first slot with white release levers, the third DIMM slot in the

channel with green release levers cannot be populated.

• Up to three LRDIMMs can be populated regardless of rank count.

• Populate DIMM sockets only if a processor is installed. For single-processor systems, sockets A1 to A12 are

available. For dual-processor systems, sockets A1 to A12 and sockets B1 to B12 are available.

• Populate all sockets with white release tabs first, then black, and then green.

• Do not populate the third DIMM socket in a channel with green release tabs, if a quad-rank RDIMM is populated

in the first socket with white release tabs.

• Populate the sockets by highest rank count in the following order — first in sockets with white release levers,

then black, and then green. For example, if you want to mix quad-rank and dual-rank DIMMs, populate quad-

rank DIMMs in the sockets with white release tabs and dual-rank DIMMs in the sockets with black release tabs.

• In a dual-processor configuration, the memory configuration for each processor should be identical. For

example, if you populate socket A1 for processor 1, then populate socket B1 for processor 2, and so on.

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Dell PowerEdge R620 Manuel du propriétaire Page 44

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