RX2540 M4
Upgrade and Maintenance Manual
333
Main memory
Independent Channel mode with different DIMMs
– Same letter represents identical DIMMs (capacity, rank).
– If using two different DIMMs, use a "near-balanced" platform configuration:
– all available memory channels and sockets populated equally
– identical DIMMs in each "row", but different sized DIMMs in row #1 and
row #2
– 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.
– Same quantity of both DIMMs are required on each CPU.
– "x" must always be DIMM with more ranks than "z".
– If both DIMMs have same number of ranks, "x" represents DIMMs with
higher capacity.
Summary of Contents for PRIMERGY RX2540 M4
Page 40: ...40 Upgrade and Maintenance Manual RX2540 M4 Before you start ...
Page 90: ...90 Upgrade and Maintenance Manual RX2540 M4 Basic hardware procedures ...
Page 136: ...136 Upgrade and Maintenance Manual RX2540 M4 Power supply unit PSU ...
Page 228: ...228 Upgrade and Maintenance Manual RX2540 M4 Hard disk drives HDD and solid state drives SSD ...
Page 344: ...344 Upgrade and Maintenance Manual RX2540 M4 Main memory ...
Page 362: ...362 Upgrade and Maintenance Manual RX2540 M4 Processor CPU ...
Page 390: ...390 Upgrade and Maintenance Manual RX2540 M4 Liquid cooling LC ...
Page 498: ...498 Upgrade and Maintenance Manual RX2540 M4 Additional interfaces ...
Page 572: ...572 Upgrade and Maintenance Manual RX2540 M4 Appendix A ...
Page 574: ...574 Upgrade and Maintenance Manual RX2540 M4 Appendix B ...
Page 582: ...8 RX2540 M4 Basic Serial RS 232 Cable plan System Board D3384 RS 232 onboard RS 232 rear C6 ...
Page 634: ...List of all used screws for PRIMERGY Servers Assembled in Germany and Japan January 2017 ...