H3C UniServer B5800 G3, Руководство пользователя

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Figure 4 Identifying the DIMM operating frequency
For example, for DIMMs to operate at 2933 MHz, make sure the following conditions are met:
•
The server uses a Cascade Lake CPU that supports a maximum of 2933 MHz DIMM frequency.
•
DIMMs with a maximum of 2933 MHz data rate are used.
•
Only one DIMM per channel is installed, and the DIMMs must be inserted in the white DIMM
slots.
Guidelines for installing only DDR4 DIMMs
When you install only DDR4 DIMMs, follow these restrictions and guidelines:
•
Make sure their corresponding processors are present before powering on the server.
•
Make sure all DDR4 DIMMs installed on the server have the same product code. For
information about DIMM product codes, contact Technical Support.
•
Each channel supports a maximum of 8 ranks. For information about ranks, see "Appendix B
Component specifications."
•
For general DIMM populations, see Figure 5 and Figure 6 .
•
For the configured memory mode to take effect, make sure the following installation
requirements are met:
Memory mode DIMM population requirements
Independent
•
If one processor is present, see Figure 5 .
•
If two processors are present, see Figure 6 .
Start
Identify DIMM
frequency and
processor supported
frequency
Is the DIMM
frequency 2933
MHz?
The DIMM operating
frequency is 2933
MHz
DIMM frequency < Supported frequency
DIMM frequency = Supported frequency
DIMM frequency > Supported frequency
DIMMs operate at
the DIMM frequency
DIMMs operate at
the supported
frequency
The DIMM operating
frequency is 2666
MHz
Yes
No
No
Yes
Compare the frequency
Two DIMMs installed?