Memory Population Conditions - Fujitsu PRIMERGY RX4770 M5 Upgrade And Maintenance Manual

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Main memory
– Maximum 1,536 GB DDR4 RDIMM 3DS per CPU with 128 GB (8Rx4)
– Maximum 1,536 GB per system using RDIMM
– Maximum 6,144 GB per system using RDIMM 3DS technology with 128 GB
per module
For system relevant information, see the hardware configurator of your
server available online at the following address:
https://ts.fujitsu.com/products/standard_servers/index.htm
For Japan:
https://www.fujitsu.com/jp/products/computing/servers/primergy/
In case of dealing with memory modules in a liquid cooling configuration,
see chapter
10.2.2

Memory population conditions

● Non-ECC DIMMs are not supported on this platform.
● All DIMMs must be either all DDR4 DIMMs and/or DDR4 and DCPMMs.
● x4 and x8 DIMMs cannot be mixed in any channel.
● Mixing of LRDIMM with RDIMM type is not allowed per platform.
● Mixing of non-3DS and 3DS LRDIMMs is not allowed in the same channel,
across different channels, and across different sockets.
● Mixing of DCPMMs with RDIMMs is supported in Purley platform.
● Mixing of DCPMMs with LRDIMMs is supported in Purley 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).
● If two DIMMs with different capacity are installed in one channel, the DIMM
with the higher capacity has to be placed in slot 1 of a channel, e.g. 1A, 1B.
● If DIMMs with different ranks are installed in one channel, the DIMM with the
higher rank has to be placed in slot 1 of a channel, e.g. 1A, 1B.
242
"Liquid cooling (LC)" on page
Upgrade and Maintenance Manual
371.
RX4770 M5

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