User Manual

Table Of Contents
Item Description Example
6 CAS latency
P = CAS 15-15-15
T = CAS 17-17-17
U = CAS 20-18-18
V = CAS 19-19-19 (for RDIMM, LRDIMM)
V = CAS 22-19-19 (for 3DS TSV LRDIMM)
Y = CAS 21-21-21 (for RDIMM, LRDIMM)
Y = CAS 24-21-21 (for 3DS TSV LRDIMM)
7 DIMM type
R = RDIMM (registered)
L = LRDIMM (load reduced)
E = Unbuffered ECC (UDIMM)
For more information about product features, specifications, options, configurations, and compatibility, see the
HPE DDR4 SmartMemory QuickSpecs on the Hewlett Packard Enterprise website (http://www.hpe.com/
support/DDR4SmartMemoryQS).
NVDIMM identification
NVDIMM boards are blue instead of green. This change to the color makes it easier to distinguish NVDIMMs
from DIMMs.
To determine NVDIMM characteristics, see the full product description as shown in the following example:
Item Description Definition
1 Capacity 16 GiB
2 Rank 1R (Single rank)
3 Data width per DRAM chip x4 (4 bit)
4 Memory type NN4=DDR4 NVDIMM-N
5 Maximum memory speed 2667 MT/s
6 Speed grade V (latency 19-19-19)
7 DIMM type RDIMM (registered)
8 Other
20 Component identification