Dell E26S Series owner manual Sample memory configurations

is used to mirror the active memory modules. In the event of an uncorrectable error, the system switches over to the mirrored copy. This ensures SDDC and multi-bit protection.

The installation guidelines for memory modules are as follows

•Memory modules must be identical in size, speed, and technology.

•Memory modules installed in memory module sockets with white release levers must be identical and the same rule applies for sockets with black and green release tabs. This ensures that identical memory modules are installed in matched pairs—for example, A1 with A2, A3 with A4, A5 with A6, and so on.

Sample memory configurations

The following tables show sample memory configurations for one and two processor configurations that follow the appropriate memory guidelines.

NOTE: 1R, 2R, and 4R in the following tables indicate single-, dual-, and quad-rank DIMMs respectively.

Table 1. Memory configurations—single processor

System	DIMM size	Number of	DIMM rank,	DIMM slot population
capacity (in	(in GB)	DIMMs	organization, and
GB)			frequency
4	4	1	1R, x8, 2133 MT/s,	A1
			1R, x8, 1866 MT/s
8	4	2	1R, x8, 2133 MT/s,	A1, A2
			1R, x8, 1866 MT/s
16	4	4	1R, x8, 2133 MT/s,	A1, A2, A3, A4
			1R, x8, 1866 MT/s
	8	2	2R, x8, 2133 MT/s,	A1, A2
			2R, x8, 1866 MT/s
24	4	6	1R, x8, 2133 MT/s,	A1, A2, A3, A4, A5, A6
			1R, x8, 1866 MT/s
48	4	12	1R, x8, 1866 MT/s	A1, A2, A3, A4, A5, A6, A7, A8, A9,
			1R, x8, 1600 MT/s	A10, A11, A12
	8	6	2R, x8, 2133 MT/s,	A1, A2, A3, A4, A5, A6
			2R, x8, 1866 MT/s
96	8	12	2R, x8, 1866 MT/s	A1, A2, A3, A4, A5, A6, A7, A8, A9,
				A10, A11, A12

2R, x8 1600 MT/s

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