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DIMM identification
To determine DIMM characteristics, see the label attached to the DIMM and refer to the following
illustration and table.
Item
Description
Capacity
1
Rank
2
Data width on DRAM
3
Memory generation
4
Maximum memory speed 2133 MT/s
5
CAS latency
6
DIMM type
7
For more information about product features, specifications, options, configurations, and compatibility,
see the product QuickSpecs on the Hewlett Packard Enterprise website (http://www.hpe.com/info/qs).
Memory configurations
To optimize server availability, the server supports the following AMP modes:
•
Advanced ECC—Provides up to 4-bit error correction and enhanced performance over Lockstep
mode. This mode is the default option for this server.
•
Online spare memory—Provides protection against failing or degraded DIMMs. Certain memory is
reserved as spare, and automatic failover to spare memory occurs when the system detects a DIMM
that is degrading. This allows DIMMs that have a higher probability of receiving an uncorrectable
memory error (which would result in system downtime) to be removed from operation.
Advanced Memory Protection options are configured in the BIOS/Platform Configuration (RBSU). If the
requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced
ECC mode. For more information, see the HPE UEFI System Utilities User Guide for HPE ProLiant Gen9
Servers on the Hewlett Packard Enterprise website (http://www.hpe.com/info/ProLiantUEFI/docs).
Definition
8 GB
16 GB
32 GB
64 GB
1R = Single-rank
2R = Dual-rank
4R = Quad-rank
x4 = 4-bit
x8 = 8-bit
DDR4
2400 MT/s
P=15
T=17
R = RDIMM (registered)
L = LRDIMM (load reduced)
Removal and replacement procedures 47
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