FusionServer XH321C V6 Liquid-cooled Server Node
Technical White Paper
5 Hardware Description
2022-09-10
22
5.3 Memory
5.3.1 DDR4 Memory
5.3.1.1 Memory Identifier
You can determine the memory module properties based on the label attached to the memory
module.
Figure 5-6
Memory identifier
Callout
Description
Example
1
Capacity
⚫
16 GB
⚫
32 GB
⚫
64 GB
⚫
128 GB
2
rank(s)
⚫
1R = Single rank
⚫
2R = Dual rank
⚫
4R = Quad rank
3
Data width on the DRAM
⚫
x4: 4-bit
⚫
x8: 8-bit
4
Type of the memory interface
⚫
PC4 = DDR4
5
Maximum memory speed
⚫
2933 MT/S
⚫
3200 MT/S
6
Memory latency parameters
(CL-tRCD-tRP)
⚫
W = 20-20-20
⚫
Y = 21-21-21
⚫
AA = 22-22-22
7
DIMM type
⚫
R = RDIMM
⚫
L = LRDIMM