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Chapter 2: Installation
General Guidelines for Optimizing Memory Performance
• Always use DDR4 memory 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.
• To achieve the best memory performance, a balanced memory population is recommended.
X12SPZ-LN4F
REV: 2.00
DESIGNED IN USA
LEDBMC
LEDPWR
JTPM1
JWD1
JD1
COM1
M.2-H
JPG1
JL1
JPME1
JPME2
JBM1
UID
UIDLED
USB0/1 USB2/3
USB6/7
JNS1
JRK1
PCIe 4.0 x8
P1_NVME0
DIMMF1
DIMME1
DIMMH1
DIMMG1
DIMMC1
DIMMD1
DIMMA1
DIMMB1
JPDB1
BAR CODE
VGA
LAN6 LAN5
LAN3/4 LAN1/2
IPMI LAN
USB4/5 (3.0)
JBM2
CPU
JPFR2
JPFR3
JPFR1
JCPLD1
J19
JIPMB1
JNVI2CI
SRW3
JMD1
JADV1
S-SGPIO1
MH9
S-SATA0
S-SATA1
FANB
FANA
J18
JF1
MH2
FAN4 FAN3
JVR1
FAN2 FAN1
MH5
JPV1
MH7
JPH1
JPW1
JPI2C1
JPL2
JLANLED1_1
JLANLED1
MAC CODE
JGP1
CPU1 SLOT6 PCI-E 4.0 x16
SRW4
BT1
SFP2 SFP1
CPU1 SLOT4 PCI-E 4.0 x16
JBT1
JSTBY1
Intel PCH
621A
MH3
MH4
MH6
JSLIM1
MH8
JTS1
JPL1
JPT1
JSLIM2
PCIe 4.0 x4
DIMME1
DIMMH1
DIMMF1
DIMMG1
DIMMA1
DIMMD1
DIMMB1
DIMMC1