User Manual

2-10
Chapter 2: Hardware Information
2.4 System memory
2.4.1 Overview
The motherboard comes with sixteen (16) Double Data Rate 4 (DDR4) Dual Inline Memory
Modules (DIMM) sockets.
The gure illustrates the location of the DDR4 DIMM sockets:
2.4.2 Memory Configurations
You may install 32GB, 16GB, 8GB, 4GB RDIMM, 64GB, 32GB LRDIMM, or 128GB, 64GB
LRDIMM 3DS into the DIMM sockets using the memory congurations in this section.
• 6 DIMM conguration is not recommended for AMD EPYC™ 7002 Series processors.
• When mixing 2DPC and 1DPC, ensure that each channel’s total DIMM size should be
equal. The DIMM size of 2DPC should equal to that of 1DPC, for example, if 2DPC is
using a 32GB memory module (32GB * 2), then a 64GB memory module should be
installed for 1DPC.
• All memory modules for 2DPC should be the same.
• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
Memory configurations
DIMM
A1 A2 B1 B2 C1 C2 D1 D2
E1 E2 F1 F2 G1 G2 H1 H2
1 DIMM
P
2 DIMMs
P P
4 DIMMs
P P
P
P
8 DIMMs
P P
P P
P P
P
P
10 DIMMs
P P P P P
P
P P
P
P
12 DIMMs
P P P P P P P P P P P P
14 DIMMs
P P P P P P P P P P P P P P
16 DIMMs
P P P P P P P P P P P P P P P P