Installation order: memory mirroring with four processors

Memory module installation order for memory mirroring with four processors installed in the server.

The following tables show the DIMM population sequence for memory mirroring when four processors are installed.

Note

When adding one or more DIMMs during a memory upgrade, you might need to remove some DIMMs that are already installed to new locations.

Table 1. Memory mirroring with four processors (Processors 1 and 2)
Total	Processor 1												Processor 2												Total
DIMMs	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	DIMMs
8								8		10										20		22			8
10								8		10		12								20		22			10
12			3		5			8		10										20		22			12
14			3		5			8		10										20		22		24	14
16			3		5			8		10					15		17			20		22			16
18	1		3		5			8		10		12			15		17			20		22			18
20	1		3		5			8		10		12			15		17			20		22			20
22	1		3		5			8		10		12	13		15		17			20		22		24	22
24	1		3		5			8		10		12	13		15		17			20		22		24	24
26			3	4	5	6	7	8	9	10			13		15		17			20		22		24	26
28			3	4	5	6	7	8	9	10					15	16	17	18	19	20	21	22			28
30			3	4	5	6	7	8	9	10					15	16	17	18	19	20	21	22			30
32			3	4	5	6	7	8	9	10					15	16	17	18	19	20	21	22			32
34	1	2	3	4	5	6	7	8	9	10	11	12			15	16	17	18	19	20	21	22			34
36	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	36
38	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	38
40	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	40
42	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	42
44	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	44
48	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	48

Related DIMM population sequences for four processor systems:

Table 2. Memory mirroring with four processors (processor 3 and 4)
Total	Processor 3												Processor 4												Total
DIMMs	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	DIMMs
8								32		34										44		46			8
10								32		34		36								44		46			10
12			27		29			32		34										44		46			12
14			27		29			32		34										44		46		48	14
16			27		29			32		34					39		41			44		46			16
18			27		29			32		34					39		41			44		46			18
20	25		27		29			32		34		36			39		41			44		46			20
22	25		27		29			32		34		36			39		41			44		46			22
24	25		27		29			32		34		36	37		39		41			44		46		48	24
26	25		27		29			32		34		36	37		39		41			44		46		48	26
28	25		27		29			32		34		36	37		39		41			44		46		48	28
30			27	28	29	30	31	32	33	34			37		39		41			44		46		48	30
32			27	28	29	30	31	32	33	34					39	40	41	42	43	44	45	46			32
34			27	28	29	30	31	32	33	34			37		39		41			44		46		48	34
36	25		27		29			32		34		36	37		39		41			44		46		48	36
38			27	28	29	30	31	32	33	34			37		39		41			44		46		48	38
40			27	28	29	30	31	32	33	34					39	40	41	42	43	44	45	46			40
42	25	26	27	28	29	30	31	32	33	34	35	36	37		39		41			44		46		48	42
44	25	26	27	28	29	30	31	32	33	34	35	36			39	40	41	42	43	44	45	46			44
48	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	10	41	42	43	44	45	46	47	48	48

Related DIMM population sequences for four processor systems:

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