No. Description Definition
5 Maximum memory speed
l 2400 MT/s
l 2666 MT/s
6 CAS latency
l P: 15-15-15
l T: 17-17-17
7 DIMM type
l R: RDIMM
l L: LRDIMM
5.13.5 Memory Protection
The following memory protection technologies are supported:
l ECC
l Mirrored Channel Mode
l SDDC
l Rank Sparing Mode
l Lockstep
5.13.6 DIMM Installation Rules
l General DIMM Installation Rules
– Install DIMMs only when the corresponding CPU is installed.
– Do not install LRDIMMs and RDIMMs on the same server.
– 5.13.2 Memory Subsystem Architecture provides the DIMM installation
sequence.
– When installing DIMMs in a memory channel, install DIMMs with more ranks and
then DIMMs with fewer ranks (starting from the slot farthest from the CPU). For
example, install quad-rank DIMMs, then dual-rank DIMMs, and then single-rank
DIMMs.
– Install DIMM fillers in vacant DIMM slots.
l DIMM Installation Rules for Specific Modes
– Installation Rules for the Memory Sparing Mode
n Follow the general DIMM installation rules.
n The spare configuration of each channel must be valid.
n Different channels can have different spare configurations.
n Each channel with DIMMs installed must have a spare rank.
– Installation Rules for the Memory Mirroring Mode
n Follow the general DIMM installation rules.
n Install DIMMs in either channels 1 and 2, or channels 3 and 4. The installed
DIMMs must be of the same size and organization.
n For a multi-CPU configuration, each CPU must have a valid memory
mirroring configuration.
2288H V5 Server
User Guide
5 Optional Part Installation
Issue 04 (2018-09-04) Copyright © Huawei Technologies Co., Ltd. 161
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