H3C UniServer R6900 G3, User Manual

Page: 163 / 214

11-4
Product
code
Model Type Capacity Data rate Rank
0231AC4S DDR4-2933P-16G-1Rx4-R RDIMM 16 GB 2933 MHz Single-rank
0231AC4V DDR4-2933P-16G-2Rx8-R RDIMM 16 GB 2933 MHz Dual-rank
0231AC4T DDR4-2933P-32G-2Rx4-R RDIMM 32 GB 2933 MHz Dual-rank
0231AC4N DDR4-2933P-64G-2Rx4-R RDIMM 64 GB 2933 MHz Dual-rank
DCPMM specifications
Product code Model Type Capacity Data rate
0231AC5R AP-128G-NMA1XBD128GQSE Apache Pass 128 GB 2666 MHz
0231AC7P AP-256G-NMA1XBD256GQSE Apache Pass 256 GB 2666 MHz
0231AC65 AP-512G-NMA1XBD512GQSE Apache Pass 512 GB 2666 MHz
DRAM DIMM rank classification label
A DIMM rank is a set of memory chips that the system accesses while writing or reading from the
memory. On a multi-rank DIMM, only one rank is accessible at a time.
To determine the rank classification of a DRAM DIMM, use the label attached to the DIMM, as shown
in
Figure 11-1 .
Figure 11-1 DRAM DIMM rank classification label
Table 11-3 DIMM rank classification label description
Callout Description Remarks
1 Capacity
•
8GB
.
•
16GB
.
•
32GB
.
2 Number of ranks
•
1R
— One rank.
•
2R
—Two ranks.
•
4R
—Four ranks.
•
8R
—Eight ranks.
3 Data width
•
×4
—4 bits.
•
×8
—8 bits.