Exceptional Dell PowerEdge M605 DDR2 667MHz ECC Registered DIMM memory upgrades

Increase the productivity of your Dell PowerEdge M605 server computing power by installing more memory. Trust PRO Memory Upgrade to provide beyond compatible expansion options for your server with a Dell PowerEdge ECC Registered DIMM RAM upgrade.

• Your Dell PowerEdge maximum RAM capacity: 64GB
• The PowerEdge M605 has 8 memory slots or sockets
• This PowerEdge module upgrade PIN count is: 240-PIN
• The memory speed is: DDR2 667MHz, PC2-5300
• The server DIMM type for your PowerEdge M605 is: RDIMM, ECC REG, ECC Registered DIMM

System Memory - PowerEdge M605

You can upgrade your system memory to a maximum of 16 GB (single processor) or 32 GB (dual processors) by installing 667- or 800-MHz registered DDR2 memory modules in sets of 512-MB, 1-GB, 2-GB, 4-GB, or 8-GB modules. Each processor has four memory channels, organized in sets of two channels.

Figure 3-16. Memory Locations - PowerEdge M605

General Memory Module Installation Guidelines - PowerEdge M605

To ensure optimal performance of your system, observe the following guidelines when installing your system memory:

• Memory modules must be installed in pairs of identically-sized DIMMs, beginning with slots A1 and A2 (processor 1) and B1 and B2 (processor 2, if installed). These slots are marked by white ejector tabs.
  
• All memory modules in the blade must be identical in speed and technology. The memory modules in each pair must be the same size.
  
• In two-processor configurations, memory must be installed in the same configuration (symmetrically) for both processors.
  
• If pairs of memory modules of different sizes are installed, the larger capacity memory modules must be installed in the lower numbered slots.
  
• Memory sparing is supported if four (single-processor systems) or eight (dual-processor systems) memory modules are installed.
  

Table 3-11 and Table 3-12 show examples of supported single- and dual-processor memory configurations.

Single-Processor Memory Configurations

CAUTION: Memory module blanks must be installed in unoccupied memory sockets to maintain proper cooling airflow.

Table 3-11. Single-Processor Memory Configurations - PowerEdge M605 

Dual-Processor Memory Configurations

NOTE: Memory module blanks must be installed in unoccupied memory sockets to maintain proper cooling airflow.

Table 3-12. Dual-Processor Memory Configurations - PowerEdge M605

Non-Optimal Memory Configurations

System performance can be affected if your memory configuration does not conform to the preceding installation guidelines. Your system may issue an error message during start-up stating that your memory configuration is non-optimal.

Memory Sparing Support - PowerEdge M605

Memory sparing is supported in single- or dual-processor systems that have one of the fully populated memory configurations shown in Table 3-13. The memory sparing feature must be enabled in the Memory Information screen of the System Setup program. See "Memory Settings Screen." To use memory sparing, you must disable node interleaving.

Memory sparing allocates only the first rank of memory of a DIMM. For a single-rank DIMM, the entire capacity of the DIMM must be allocated for sparing along with the adjacent single-rank DIMM to spare a memory channel. For dual-rank DIMMs, two DIMMs are also required for sparing, but as only the first rank of each DIMM is allocated, only half of a dual-rank DIMM's capacity is allocated for sparing. The second ranks on both DIMMs are available memory. Table 3-13 shows how memory sparing splits the available and spared memory in each memory module configuration.

Table 3-13. Memory Sparing Configurations - PowerEdge M605