Figure 198: Mixing of DIMM within an iMC - RDIMM
Figure 199: Mixing of DIMM within an iMC - 3DS RDIMM
For memory population rules, see the hardware configurator of your
server, available online at the following address:
https://www.fujitsu.com/fts/products/computing/servers/primergy/
index.html
For Japan:
https://jp.fujitsu.com/platform/server/primergy/system/ (models on sale)
https://jp.fujitsu.com/platform/server/primergy/product-navi/ (past
models)
10.2.3 DDR5 only - memory population rules
DDR5 only - memory population rules, 1DPC configuration
–
Unbalanced configurations can lead to significantly reduced bandwidth
because the system will fracture the memory space into multiple regions.
–
If two DIMMs with dif
ferent capacity are installed in one channel, the one
with higher capacity has to be placed in slot 1 of a channel. E.g. 1A, 1B, ….
Main memory
RX2540 M7 Upgrade and Maintenance Manual 337
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