Memory Installation; Memory Support; Dimm Module Population Guidelines - Supermicro A+ Server AS-1124US-TNRP User Manual

A+ Server AS -1124US-TNRP User's Manual

Memory Installation

Memory Support

The H12DSU-iN supports Up to 8 TB of ECC DDR4 3200 MHz speed, RDIMM/LRDIMM/3DS/
NVDIMM memory in thirty-two slots. Refer to the table below for additional memory information.
Check the Supermicro website for possible updates to memory support.
Processors and their Corresponding Memory Modules
CPU# Channel Channel
1
CPU1
CPU2
CPU1
CPU2
CPU1
CPU2
CPU1 A2
CPU2 A2
CPU1 A2
CPU2 A2
CPU1 A1 A2
CPU2 A1 A2
CPU1 A1 A2 B1
CPU2 A1 A2 B1

DIMM Module Population Guidelines

•
Always use DDR4 DIMM modules of the same type, size and speed.
•
Mixed DIMM speeds can be installed. However, all DIMMs will run at the speed of the
slowest DIMM.
•
The motherboard supports an odd number of modules (1, 3, etc.). However, to achieve the
best memory performance, a balanced memory population is recommended.
•
In single-CPU configurations, memory must be installed in the DIMM slots associated with
the installed CPU.
Channel Channel
2 3 4
2 DIMMS (not recommended)
C2
C2
4 DIMMS (not recommended)
C2
C2
8 DIMMS (not recommended)
C2
C2
12 DIMMS (for 7003 CPU only)
C2
C2
16 DIMMS
B2 C2
B2 C2
24 DIMMS (for 7003 CPU only)
C1 C2 D1
C1 C2 D1
32 DIMMS
B2 C1 C2 D1
B2 C1 C2 D1
Channel Channel
5 6
D2
D2
D2
D2
D2 E2
D2 E2
D2 E2 F2
D2 E2 F2
D2 E1 E2
D2 E1 E2
D2 E1 E2 F1 F2
D2 E1 E2 F1 F2
34
Channel Channel
7 8
G2 H2
G2 H2
G2 H2
G2 H2
G2 H2
G2 H2
G1 G2 H1 H2
G1 G2 H1 H2
G1 G2 H1 H2
G1 G2 H1 H2