Supermicro C9Z490-PG - Memory Support and Installation; General Guidelines for Optimizing Memory Performance

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Super C9Z490-PG/-PGW User's Manual
2.4 Memory Support and Installation
Note: Check the Supermicro website for recommended memory modules.
Important: Exercise extreme care when installing or removing DIMM modules to pre-
vent any possible damage.
General Guidelines for Optimizing Memory Performance
• When installing memory modules, the DIMM slots should be populated in the following
order: DIMMA2, DIMMB2, then DIMMA1, DIMMB1.
• Only populate DIMMA1 and DIMMB1 if the extra memory support is needed.
• 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.
• The motherboard will support odd-numbered modules (one or three modules installed).
However, to achieve the best memory performance, a balanced memory population is
recommended.
PCH
PLX
Super I/O
LAN Controller
SW1 (CLEAR CMOS)
10G LAN
Controller
+
+
3
1
DESIGNED IN USA
C9Z490-PGW
REV:1.01
BIOS
LICENSE
MAC CODE
MAC CODE
BAR CODE
MH14
JRLED1
MH11
MH10
MH12
MH13
MH15
JSTBY1
JTPM1
HD AUDIO
B1
SP1
JD1
JSD1
SYS_FAN3
USB10/11 (3.2(5Gb))
JPW1
LED18
LED17
LED3
LED2
LED1
JPW2
JI2C2
JI2C1
JL1
LED4
JPAC1
JLED1
JWD1
JPME2
12V_PUMP_PWR1
USB9 (3.2(20Gb))
USB8 (3.2(10Gb))
USB2/3
JF1
BOOT LED
VGA LED
DIMM LED
CPU LED
DP/HDMI
LAN1
AUDIO FP
COM1
USB0/1
PCIE M.2-M1
CPU SLOT1 PCI-E 3.0 X8 (IN X16) CPU SLOT3 PCI-E 3.0 X16
PCH SLOT4 PCI-E 3.0 X1
CPU SLOT5 PCI-E 3.0 X8 (IN X 16)
I-SATA1
I-SATA0
I-SATA3
I-SATA2
CPU SLOT7 PCI-E 3.0 X16
SYS_FAN2
PCIE M.2-M2
USB12 (3.2(10Gb))
USB6/7 (3.2(10Gb)) USB4/5 (3.2(5Gb))
POWER
BUTTON
DIMMB1
DIMMB2
DIMMA1
DIMMA2
RESET
BUTTON
SYS_FAN1
CPU_FAN1
CLEAR CMOS
CPU_FAN2
LAN2
PCIE M.2-E1
WiFi+BT
DIMMA1
DIMMA2
DIMMB1
DIMMB2