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Chapter 3: Maintenance and Component Installation
Use the DIMM slots listed below for memory modules. This memory population table is based
on guidelines provided by Intel to support Supermicro motherboards.
Memory Population for the X12 DP Motherboard, 16 DIMM Slots
CPUs/DIMMs
Memory Population Sequence
1 CPU & 1 DIMM
A1
1 CPU & 2 DIMMs
A1, E1
1 CPU & 3 DIMMs*
A1, C1, E1
1 CPU & 4 DIMMs
A1, C1, E1, G1
1 CPU & 5 DIMMs*
A1, B1, C1, E1, G1
1 CPU & 6 DIMM
A1, B1, C1, E1, F1, G1
1 CPU & 7 DIMMs*
A1, B1, C1, D1, E1, F1, G1
1 CPU & 8 DIMMs
A1, B1, C1, D1, E1, F1, G1, H1
2 CPUs & 2 DIMMs
CPU1: A1
CPU2: A1
2 CPUs & 4 DIMMs
CPU1: A1, E1
CPU2: A1, E1
2 CPUs & 6 DIMMs*
CPU1: A1, C1, E1, F1
CPU2: A1, E1
2 CPUs & 8 DIMMs
CPU1: A1, C1, E1, F1
CPU2: A1, C1, E1, F1
2 CPUs & 10 DIMMs*
CPU1: A1, B1, C1. E1, F1, G1
CPU2: A1, C1, E1, F1
2 CPUs & 12 DIMMs
CPU1: A1, B1, C1. E1, F1, G1
CPU2: A1, B1, C1. E1, F1, G1
2 CPUs & 14 DIMMs*
CPU1: A1, B1, C1. D1, E1, F1, G1, H1
CPU2: A1, B1, C1. E1, F1, G1
2 CPUs & 16 DIMMs
CPU1: A1, B1, C1. D1, E1, F1, G1, H1
CPU2: A1, B1, C1. D1, E1, F1, G1, H1
*Unbalanced, not recommended.
Figure 3-3. Memory Slots
BAR CODE
MAC CODE
X12DDW-A6
REV:1.01
JS2
JNVME8 JNVME7
JNVME6 JNVME5
JNVME4 JNVME3
JNVME2 JNVME1
S-UM16
S-UM14
S-UM15
S-UM13
J35
JLUIO1
JRUIO1
JAIOM1
JAIOM2
MH10
MH11
S-SATA5
S-S
AT
A4
JM2_2
JM2_1
JFP2
JLUIO2
JRUIO2
6
1
H
M
5
1
H
M
JCOM1
JFP1
JS1
JPCIE1
JPCIE4
JPCIE3
JPCIE2
JSTBY1
JBT1
S-SGPIO2
JTPM1
JUSBRJ45
JVGA1
JUIDB1
JPWR1
LE4
LE7
LE3
LE6
JPI2C1
BT1
FAN6
FAN5
FAN4
FAN3
FAN2
FAN1
JL1
JRK1
JF1
JIPMB1
JPWR3
JPWR2
BMC
BMC Firmware
BIOS
Battery
PWR LED
USB0/1 (2.0)
P2_PCIE0
P2_PCIE1
P1_PCIE
1
P1_PCIE0
P2_NVME2
P2_NVME3
P2_NVME0
P2_NVME1
P1_NVME2
P1_NVME3
P1_NVME1 P1_NVME0
P2_AIOM
P1_AIOM
M.2-P1
P1-DIMME1
P1-DIMMF1
P1-DIMMH1 P1-DIMMG1
UID
CPU1
CPU1 LUIO2 PCIe 4.0 X16
P1-DIMMC1 P1-DIMMD1 P1-DIMMA1 P1-DIMMB1
COM1
VROC
TPM/PO
RT80
USB2/3(3.0)
I-S
AT
A0~
7
S-S
AT
A0~3
S-S
AT
A4
S-S
AT
A1
IPMI_LAN
VGA
P2-DIMMF1 P2-DIMME1 P2-DIMMH1 P2-DIMMG1
CPU2 RUIO2 PCIe 4.0 X16
M.2-P2
CPU2
P2-DIMMD1
P2-DIMMC1
P2-DIMMA1 P2-DIMMB1
PCH
CPLD
JNCSI1
LEDM1
JRU1