Independent mode

Independent mode provides high performance memory capability. You can populate all channels with no matching requirements. Individual channels can run at different memory module timings, but all channels must run at the same interface frequency.

Note

All memory modules to be installed must be the same type.
All Performance+ DIMMs in the server must be of the same type, rank, and capacity (the same Lenovo part number) to operate at 2933 MHz in the configurations with two DIMMs per channel. Performance+ DIMMs cannot be mixed with other DIMMs.
When you install memory modules with same rank and different capacity, install the memory module that has the highest capacity first.

The following table shows the memory module population sequence for independent mode when only one processor (Processor 1) is installed.

Note

If there are three identical memory modules to be installed for Processor 1, and the three memory modules have the same Lenovo part number, move the memory module to be installed in slot 8 to slot 1.
If there are ten identical memory modules to be installed for Processor 1, and the ten memory modules have the same Lenovo part number, move the memory module to be installed in slot 6 to slot 12.

Table 1. Independent mode with one processor
Total	Processor 1												Total
DIMMs	12	11	10	9	8	7	6	5	4	3	2	1	DIMMs
1								5					1
2					8			5					2
3					8			5		3			3
4			10		8			5		3			4
5			10		8			5		3		1	5
6	12		10		8			5		3		1	6
7	12		10		8		6	5	4	3			7
8			10	9	8	7	6	5	4	3			8
9	12		10		8		6	5	4	3	2	1	9
10			10	9	8	7	6	5	4	3	2	1	10
11	12		10	9	8	7	6	5	4	3	2	1	11
12	12	11	10	9	8	7	6	5	4	3	2	1	12

The following table shows the memory module population sequence for independent mode when two processors (Processor 1 and Processor 2) are installed.

Note

If there are three identical memory modules to be installed for Processor 1, and the three memory modules have the same Lenovo part number, move the memory module to be installed in slot 8 to slot 1.
If there are three identical memory modules to be installed for Processor 2, and the three memory modules have the same Lenovo part number, move the memory module to be installed in slot 20 to slot 13.
If there are ten identical memory modules to be installed for Processor 1, and the ten memory modules have the same Lenovo part number, move the memory module to be installed in slot 2 to slot 12.
If there are ten identical memory modules to be installed for Processor 2, and the ten memory modules have the same Lenovo part number, move the memory module to be installed in slot 14 to slot 24.

Table 2. Independent mode with two processors
Total	Processor 2												Processor 1												Total
DIMMs	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	DIMMs
2								17												5					2
3								17									8			5					3
4					20			17									8			5					4
5					20			17									8			5		3			5
6					20			17		15							8			5		3			6
7					20			17		15					10		8			5		3			7
8			22		20			17		15					10		8			5		3			8
9			22		20			17		15					10		8			5		3		1	9
10			22		20			17		15		13			10		8			5		3		1	10
11			22		20			17		15		13	12		10		8			5		3		1	11
12	24		22		20			17		15		13	12		10		8			5		3		1	12
13	24		22		20			17		15		13	12		10		8		6	5	4	3			13
14	24		22		20		18	17	16	15			12		10		8		6	5	4	3			14
15	24		22		20		18	17	16	15					10	9	8	7	6	5	4	3			15
16			22	21	20	19	18	17	16	15					10	9	8	7	6	5	4	3			16
17			22	21	20	19	18	17	16	15			12		10		8		6	5	4	3	2	1	17
18	24		22		20		18	17	16	15	14	13	12		10		8		6	5	4	3	2	1	18
19	24		22		20		18	17	16	15	14	13			10	9	8	7	6	5	4	3	2	1	19
20			22	21	20	19	18	17	16	15	14	13			10	9	8	7	6	5	4	3	2	1	20
21	24		22		20		18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	21
22	24		22	21	20	19	18	17	16	15	14	13	12		10	9	8	7	6	5	4	3	2	1	22
23	24		22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	23
24	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	24

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