Dimm Module Population - Supermicro H12SSW-iNL User Manual

H12SSW-iNL/NTL Motherboard User's Manual

DIMM Module Population

When populating the motherboard with DIMM modules, please keep in mind the following:
•
Always use DDR4 DIMM modules of the same type, size and speed.
•
All eight memory channels per CPU socket should be populated with each channel having
equal capacity. This enables the memory subsystem to operate in eight-way interleaving
mode, which should provide the best performance in most cases.
•
In most configurations, populating fewer than eight channels is supported, but not recom-
mended.
DIMMA1
DIMMB1
DIMMC1
DIMMD1
*NOTE: Most configurations populating fewer than eight channels are supported, but not recommended.
Figure 2-2. DIMM Numbering
Memory Module Distribution
Channel
D1 C1 B1 A1
1 DIMM (Supported, Not Recommended)
ü
2 DIMMs (Supported, Not Recommended)
ü ü
4 DIMMs
ü ü
6 DIMMs
Unbalanced, not recommended
8 DIMMs
ü ü ü ü
CPU
E1 F1 G1
ü
ü ü ü
32
DIMME1
DIMMF1
DIMMG1
DIMMH1
H1
ü
ü