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Chapter 3: Maintenance and Component Installation
3.4 Memory
Note: Check the Supermicro website for recommended memory modules.
Important: Exercise extreme care when installing or removing DIMM modules to prevent
any possible damage.
Memory Support
The H13SSW supports up to 3TB of ECC DDR5 4800 MT/s speed, RDIMM/LRDIMM/3DS
memory in twelve slots. Refer to the table below for additional memory information.
Note: Check the Supermicro website for possible updates to memory support.
DIMM Population Guide
Type
1 DIMM Per Channel
F1 E1 D1 C1 B1 A1 CPU G1 H1 I1 J1 K1 L1
1 DIMM*
V
2 DIMMs*
V V
4 DIMMs*
V V V V
6 DIMMs*
V V V V V V
8 DIMMs**
V V V V V V V V
10 DIMMs**
V V V V V V V V V V
12 DIMMs***
V V V V V V V V V V V V
Populating RDIMM/RDIMM 3DS DDR5 Memory Modules with
AMD EPYC™ 9004 Series Processors
Type
DIMM Population Maximum DIMM Capacity
Maximum Frequency
(MT/s)
DIMM1 1 Channel 12 Channels
RDIMM
1R (1 rank) 32GB 384GB 4800
2R (2 ranks) 64GB 768GB 4800
3DS RDIMM
2S2R (4 ranks) 128GB 1.5TB 4800
2S4R (8 ranks) 256GB 3TB 4800
*AMD does not recommend installing 1, 2, 4, or 6 DIMMs per CPU socket, as it may impact
performance.
**Recommended for 16 to 64-core CPUs.
***Preferred for 84-core or more CPUs, and recommended for all other CPUs.
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