Dell R410 owner manual 121, Single Processor Dual Processor Memory

Memory Mirroring Support

The system supports memory mirroring if identical memory modules are installed in the two channels closest to the processor (memory should not be installed in the farthest channel). Mirroring must be enabled in the System Setup program. In a mirrored configuration, the total available system memory is one-half of the total installed physical memory.

Optimizer (Independent Channel) Mode

In this mode, all three channels are populated with identical memory modules. This mode permits a larger total memory capacity but does not support SDDC with x8-based memory modules.

Aminimal single-channel configuration of one 1-GB memory module per processor is also supported in this mode.

Table 3-2 and Table 3-3 show sample memory configurations that follow the appropriate memory guidelines stated in this section. The samples show identical memory-module configurations and their the physical and available memory totals. The tables do not show mixed or quad-rank memory-module configurations, nor do they address the memory speed considerations of any configuration.

Table 3-2. Sample RDIMM Single- and Dual-Rank Memory Configurations (Per Processor)

			Memory			Single Processor		Dual Processor
	Memory		Sockets
Memory	Module
		4	1	2	3	Physical	Available	Physical	Available
Mode	Size
						Memory	Memory	Memory	Memory
						(GB)	(GB)	(GB)	(GB)
Optimizer	1-GB		X			1	all	2	all
			X	X		2		4
			X	X	X	3		6
		X	X			2		4
		X	X	X	X	4		8

Installing System Components

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