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Chapter 3: Maintenance and Component Installation
Figure 3-2. DIMM Slots
General Guidelines for Optimizing Memory Performance
When installing memory modules, the DIMM slots should be populated in the following order:
DIMMA1, DIMMB1, DIMMA2, DIMMB2.
•
Always use DDR4 DIMM modules of the same type 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 (one or three modules installed).
However, for best memory performance, install DIMM modules in pairs to activate memory
interleaving.
DIMMB2
DIMMA2
DIMMB1
DIMMA1
JMD1: M.2-H PCIe 3.0 x4/SA
TA
3.0
JMD2_SRW1
JPG1
MH5
JLANLED3
JBM1
MH6
JLANLED2
JNVI2C1
JRK1
JIPMB1
JMD2_SRW2
JPME2
JWD1
JPH1
JPL3
JVRM1
JSDP4
JSDP1
JSFPLED1
JOPPS
JLANLED1
USB2/3
USB0/1
JSMB1
J1
JGP1
I-SA
TA3
I-SA
TA1
JSLIM2
JSLIM1
PCIe 3.0 X4
PCIe 3.0 X4
JNS1
FANB
MH2
JPT1
JRF1
JD1
JTPM1
JMD3_SRW1
JMD2
JSIM1
M.2_H PCIe 3.0 X2/S-SATA 3.0
MH4
JSTBY1
JSD1
FANA
FAN4
LED1
COM1
JF1
JMD3
M.2-H PCIe 3.0 X1
I-SGPIO1
CPU SLOT7 PCIe 4.0 X16
CPU SLOT6 PCIe 4.0 X8
JPCIE7
JPCIE6
LEDM1
JMD1_SRW1
VGA
LED2
LED3
JUIDB1
LAN3/4
JLAN2
LAN1/2
JLAN1
LAN5/6
SFP1
X12SDV-4C-SP6F
DESIGNED IN USA
REV: 1.02
CPU
MH3
USB4/5 (3.0)
IPMI_LAN
JPL2
JSDP3
JSDP2
JPL1
JPWR1
JPI2C1
FAN3
JL1
JBT1
JNVI2C2
FAN2
FAN1
MH1
JPV1
BT1
JPF1
DIMMA2 DIMMA1 DIMMB2 DIMMB1
LEDT2
LEDT4
LEDT1
LEDT3