Lenovo ThinkAgile MX3321-F, Руководство пользователя

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DRAM DIMM installation rules
For RDIMMs or LRDIMMs, the following memory modes are available:
• “Independent mode” on page 75
• “Mirroring mode” on page 77
• “Rank sparing mode” on page 78
The following illustration helps you to locate the memory module slots on the system board.
Note: It is recommended to install memory modules with the same rank in each channel.
Figure 50. memory module slots on the system board
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.
Notes:
• All memory modules to be installed must be the same type.
• 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.
Notes:
• 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 12. 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
Chapter 5
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Hardware replacement procedures
75