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Installing System Options 79

General Memory Module Installation Guidelines

• If only one memory module is installed, it must be a 256 MB module installed in socket

DIMM_1A.

• If two or more memory modules are installed, they must be installed in pairs of matched

memory size, speed, and technology.

• Install memory modules in order of decreasing capacity, beginning with bank 1, then bank 2,

and then bank 3.

• The system supports both single-ranked and dual-ranked memory modules.

Memory modules marked with a 1R are single ranked and modules marked with a 2R are dual

ranked.

• If you install both single-ranked and dual-ranked memory modules, the dual-ranked memory

modules must be installed in bank 1, regardless of capacity.

NOTE: Dual-rank memory modules with less capacity take precedence over single-ranked memory

modules with greater capacity.

• Dual-ranked memory modules are not supported in bank 3.

Table 6-1 and Table 6-2 show examples of different memory configurations. Table 6-2 lists the

various allowable combinations of single- and dual-ranked memory modules.

Table 6-1. Sample Memory Configurations

Total Memory DIMM_1A DIMM_1B DIMM_2A DIMM_2B DIMM_3A DIMM_3B

256 MB 256 MB none none none none none

1 GB 256 MB 256 MB 256 MB 256 MB none none

1 GB 512 MB 512 MB none none none none

2 GB 512 MB 512 MB 512 MB 512 MB none none

2 GB 1 GB 1 GB none none none none

3 GB 1 GB 1 GB 512 MB 512 MB none none

3 GB 512 MB 512 MB 512 MB 512 MB 512 MB 512 MB

4 GB 1 GB 1 GB 1 GB 1 GB none none

4 GB 1 GB 1 GB 512 MB 512 MB 512 MB 512 MB

6 GB 2 GB 2 GB 1 GB 1 GB none none

6 GB 1 GB 1 GB 1 GB 1 GB 1 GB 1 GB

8 GB 2 GB 2 GB 2 GB 2 GB none none

8 GB 2 GB 2 GB 1 GB 1 GB 1 GB 1 GB

12 GB 2 GB 2 GB 2 GB 2 GB 2 GB 2 GB

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 159 160

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Dell PowerEdge 1800 Guía para resolver problemas Pagina 79