33
Chapter 3: Maintenance and Component Installation
Figure 3-10. DIMM Numbering
DIMM Module Population
There is no specific order or sequence required when installing memory modules. However,
do keep the following in mind:
•
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 will support odd-numbered modules (1 or 3 modules installed). However,
to achieve the best memory performance, a balanced memory population is recommended.
A1
B1
B1
A1
B37
B1
A1
B37
A37
B1
BIOS LICENSE
H11SSW-NT
REV:1.01
DESIGNED IN USA
M
AC
CODE
IP
MI
CODE
BAR
CODE
1 2 3
1
2
1
1
1
4
+
1
2
19
20
1
1
1
1
1
3
3
3
3
1
3
1
3
12
4
1
2
3
4
1
2
3
2
19
20
C
A
C
A
C
A
C
A
C
A
A
C
A
C
A
C
A
C
A
C
A
C
8
4
1
1
9
1
19
11
8
2
2
8
1
2
8
+
CY
CK
BK
BY
AY
Y
AK
A
K
D1
S1
JSLIM6
JSLIM8
JSLIM7
JSLIM5
JSLIM4
JSLIM2
JSLIM1
JSLIM3
JUID1
JUSB1
JLAN1
JLAN2
J18
J17
JD1
JCPLD1
FAN6
FAN5
FAN4
FAN3
FAN2
FAN1
SP1
JTPM1
JPI2C1
JOH1
JL1
SP2
JUART3
JM2_2
JM2_1
JP1
JP2
JDBG1
JPB1
JPL1
JUART2
JPG1
JWD1
JUART1
JPWR2
JUSBA1
JNVI2C2
JNVI2C1
JSEN1
JIP
MB1
JF1
SATA0
SATA1
LED2
LED4
LED3
LED5
LED1
LED7
LED10
LED11
LED8
LED9
LED6
JVGA1
JUSBRJ45
JSXB2
JSXB1B
JSD
CARD1
JSD1
JSD2
JPWR1
JH
DT1
JC
OM2
JCOM1
JBT1
J19
SGPIO3
SGPIO2
SGPIO1
U32
MH5
MH4
MH15
MH17
U28
JVRM1
JNCSI1
BT1
JSXB1A
JSXB1C
J8
J7
J6
J5
J4
J3
J2
J1
J12
J11
J14
J13
J15
J10
J9
R2046
R303
SOC_DUAL_P1
1V8_DUAL_P1
MH1
MH2
MH8
MH6
MH10
MH9
-OH
BIOS
BMC
M.2
-C2 ERR
M.2-C1 ACT
M.2
-C1 ERR
BMC_HB
LAN_LINK
LAN_
AC
T
UID-LED
UID-SW
CPU
CMOS CLEAR
DIMMD2 DIMMD1 DIMMC2 DIMMC1 DIMMB2 DIMMB1 DIM
M
A2
DIM
M
A1 CPU
DIMME2
DIMME1
DIMMG1
DIMMF2
DIMMF1
DIMMH2
DIMMH1
DIMMG2
CPU S
LO
T1 PCI-E 3.0 X16 CPU S
LO
T3 PCI-E 3.0 X16
CPU_PO
RT3C
CPU_PO
RT3A
CPU_PO
RT1A
CPU_PO
RT3C
CPU_PO
RT3A
CPU_PO
RT1C
CPU S
LO
T2 PCI-E 3.0 X16
USB2/3
(3.0)
BMC
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1-2:
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1-2:ENABLE
2-3:DISABLE
JM2_1/2
JPG1:VGA
1-2:ENABLE
2-3:DISABLE 1-2:ENABLE
JPL1/LAN
JPB1:BMC
PWR_OK
SATA0-7
NVME8/9
SA
TA8-15
NVME12/13
NVME14/15
NVME10/11
USB6/7(3.0)
CHASSIS INTRUSION
JSD1/2: S
AT
A DOM POWER
SUPERDOM
NVME0/1
NVME4/5
NVME6/7
NVME2/3
BUZZER
IPMI_LAN
PWRI2C
BATTERY
IP
MI
COM2
NCSI
M.2-C1
M.2-C2
CPU PCI_E 3.0 X2
CPU PCI-E 3.0 X4/X2
microSD
USB4(3.0)
UID
2-3:NMI 1-2:RST JWD1:
W
AT
CH DOG
TP
M/PO
RT80
4-7 SPEAKER 1-3 PWR LED
USB0/1
LAN2
(3.0)
LED
LED
JD1:
2
1
FAIL
LED
ON
VGA
LAN1
NMI
PWR
X
HDD
NIC
NIC
JF1
UID
PS
RST
PWR
COM1
CPU
DIMM A2
DIMM B1
DIMM B2
DIMM A1
DIMM E1
DIMM E2
DIMM F1
DIMM F2
DIMM C2
DIMM D1
DIMM D2
DIMM C1
DIMM G1
DIMM G2
DIMM H1
DIMM H2
DIMM Population Guide
Channel
1
2
3
4
5
6
7
8
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
DIMM
A1
A2
B1
B2
C1
C2
D1
D2
E1
E2
F1
F2
G1
G2
H1
H2
4 DIMMS*
ü
ü
ü
ü
6 DIMMS
Unbalanced, not recommended
8 DIMMS
ü
ü
ü
ü
ü
ü
ü
ü
16 DIMMS
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
*Note:
To achieve optimal memory performance, a minimum of at least one DIMM for each
channel pair in the system (e.g., A, C, E, G) is recommended.
