DIMM identification

To determine DIMM characteristics, see the label attached to the DIMM and refer to the following illustration and table.

DIMM identification
Item Description Definition
1 Capacity

8 GB

16 GB

32 GB

64 GB

128 GB

2 Rank

1R = Single-rank

2R = Dual-rank

4R = Quad-rank

8R = Octal-rank

3 Data width on DRAM

x4 = 4-bit

x8 = 8-bit

4 Memory generation DDR4
5 Maximum memory speed

2133 MT/s

2400 MT/s

6 CAS latency




7 DIMM type

R = RDIMM (registered)

L = LRDIMM (load reduced)

For more information about product features, specifications, options, configurations, and compatibility, see the product QuickSpecs on the Hewlett Packard Enterprise website.