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Super C9X299-PG300F User's Manual
2.5 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.
Memory Support
The C9X299-PG300F motherboard supports up to 128GB of Non-ECC DDR4 memory with
speeds of up to 4000MHz (overclocked) in eight memory slots. Populating these DIMM slots
with memory modules of the same type and size will result in interleaved memory, which will
improve memory performance.
DIMM Installation
1. Insert the desired number of DIMMs into the
memory slots, starting with DIMMA1, DIMMB1,
DIMMC1, DIMMD1, then DIMMA2, DIMMB2,
DIMMC2, DIMMD2. For best performance,
please use the memory modules of the same
type and speed.
2. Push the release tabs outwards on both ends
of the DIMM slot to unlock it.
3. Align the key of the DIMM module with the
receptive point on the memory slot.
4. Align the notches on both ends of the module
against the receptive points on the ends of the
slot.
5. Use two thumbs together to press the notches
on both ends of the module straight down into
the slot until the module snaps into place.
6. Press the release tabs to the lock positions to
secure the DIMM module into the slot.
DIMM Removal
Press both release tabs on the ends of the DIMM
module to unlock it. Once the DIMM module is
loosened, remove it from the memory slot.
A
C
JPG1:VGA
JPB1
PCI-E M.2-M1
JF1
JSTBY1
C
A
JWD1
LED1
JD1
JPME2
I-SATA4
U.2-1
U.2-2
I-SATA5
Release Tab
30
VGA
BT1
LAN CTRL
BMC
SYS_FAN3
HD AUDIO
LAN2
LAN1
USB3.1 (3.1 Gen2) 6/7
USB3.0 (3.1 Gen1) 4/5
JIPMB1
BIOS
LICENSE
PCI-E M.2-M2
A
C
LED6903
CPU
A
C
LED6904
IPMI CODE
PCH
1
JPW1
SYS_FAN1
JSD1:SATA DOM PWR
JPI2C1:PWR I2C
I-SATA0
I-SATA2
I-SATA3
I-SATA1
24
Notches
Press down on the
stationary end first,
then the locking end.
KB/Mouse
USB 0/1
DIMMB1
DIMMB2
DIMMA1
DIMMA2
JPW3
DIMMC2
DIMMC1
DIMMD2
DIMMD1
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