–
Mixing of non-3DS and 3DS LRDIMMs is not allowed per platform.
–
DIMMs with different frequencies can be mixed in the system, but lowest
frequency determines the system memory speed.
–
There should be at least one DDR4 DIMM per CPU socket (slot 1A/1G).
10.2.3
Modes of operation
10.2.3.1
DDR4 DIMM
Three different memory RAS modes are supported (Lockstep Channel mode is
not supported):
–
Independent Channel mode
–
Rank Sparing mode
–
Mirrored Channel mode
Below are the system level RAS mode combination limitations:
–
Mixing of Independent Channel mode and Lockstep Channel mode is not
allowed.
–
Mixing of Non-Mirrored and Mirrored Channel mode is not allowed.
–
Mixing of Lockstep mode and Mirrored Channel mode is not allowed.
–
Mixing of Rank Sparing mode and Mirrored Channel mode is not allowed.
Independent Channel mode with identical DIMMs
–
Same letter represents identical DIMMs (capacity, rank).
–
Use a "balanced" platform configuration:
– all available memory channels populated equally
– identical DIMMs in all locations (size/speed/rank)
–
Marked (*) quantity of DIMMs are not recommended because of unbalanced
configurations.
–
Unbalanced configurations can lead to significantly reduced bandwidth
because the system will fracture the memory space into multiple regions.
Main memory
260
Upgrade and Maintenance Manual
RX2520 M5
Содержание PRIMERGY RX2520 M5
Страница 100: ...Basic software procedures 100 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 122: ...Power supply unit PSU 122 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 290: ...Processor CPU 290 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 296: ...Figure 177 Installing the ODD A Insert the ODD Accessible drives 296 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 301: ...Figure 181 Removing the ODD A Unlock the ODD latch 1 Accessible drives RX2520 M5 Upgrade and Maintenance Manual 301 ...
Страница 343: ... Resuming BitLocker functionality on page 88 Accessible drives RX2520 M5 Upgrade and Maintenance Manual 343 ...
Страница 344: ...Accessible drives 344 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 378: ...Front panel 378 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 386: ...Serial interface 386 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 427: ...Figure 280 Removing the system board System board and components RX2520 M5 Upgrade and Maintenance Manual 427 ...
Страница 432: ...System board and components 432 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 462: ...Appendix A 462 Upgrade and Maintenance Manual RX2520 M5 ...
Страница 464: ...FUJITSU Server PRIMERGY RX2520 M5 Reference Manual Reference Manual English Cable Plan for March 2022 ...
Страница 503: ...List of all used screws for PRIMERGY Servers Assembled in Germany and Japan February 2019 ...