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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
TotalProcessor 1Total
DIMMs121110987 654321DIMMs
1 51
2    8   5    2
38 533
4  10 8   5 3  4
5108 5315
612 10 8   5 3 16
712108 65437
8  10987 6543  8
912108 6543219
10  10987 65432110
111210987 65432111
12121110987 65432112
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
TotalProcessor 2Processor 1Total
DIMMs242322212019 181716151413121110987 654321DIMMs
2 17 52
3        17        8   5    3
420 178 54
5    20   17        8   5 3  5
620 17158 536
7    20   17 15    10 8   5 3  7
82220 1715108 538
9  22 20   17 15    10 8   5 3 19
102220 171513108 53110
11  22 20   17 15 1312 10 8   5 3 111
12242220 17151312108 53112
1324 22 20   17 15 1312 10 8  6543  13
14242220 1817161512108 654314
1524 22 20  18171615    10987 6543  15
1622212019 1817161510987 654316
17  22212019 18171615  12 10 8  65432117
18242220 18171615141312108 65432118
1924 22 20  181716151413  10987 65432119
2022212019 18171615141310987 65432120
2124 22 20  181716151413121110987 65432121
222422212019 1817161514131210987 65432122
2324 22212019 181716151413121110987 65432123
24242322212019 181716151413121110987 65432124