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2.7 Connectors
Power Connections
SMCI-Propietary Main Power Supply Units
Two SMCI-proprietary main power supply units are located at PSU1 & PSU2. Connect
appropriate power supply units to these two headers to provide adequate power to your
system.
Backplane Power Connectors & GPU Power Connectors
In addition to the two SMCI-proprietary main power supply units located at PSU1/PSU2, eight
8-pin power connectors are also located on the motherboard to supply power to onboard
devices. GPU Power Connectors 1-4 are used for GPU devices, while BP PWR 1-4 are used
for backplane devices. Connect these connectors to your power supply to provide adequate
power to your onboard devices.
Warning: To provide adequate power to your system and to avoid damaging the power sup-
ply or the motherboard, be sure to connect all power connectors mentioned above to the
power supply. Failure in doing so may void the manufacturer warranty on your power supply
and motherboard.
8-pin GPU Power
Pin Definitions
Pin#
Definition
1 - 3
+12V
4 - 8
Ground
VGA
LEDM1
JTPM1
9
10
JF1
CPU2
LEDPWR
JF1
JL1
IPMI_LAN USB0/1 (3.0)
COM1
JUIDB2
UID
LED1
BMC
S-UM12
LAN
JSDCARD1
CTRL
JRK1
BT1
JBT1
PCH
SP1
2
PSU2
JSD2
JSD1
8
JHFI1
JNVI2C1
GPU PWR1
JHFI2
7
BIOS
X11DPU
DESIGNED IN USA
LICENSE
REV:1.10
BAR CODE
IPMI CODE
CPU1
FAN3
FAN5
8-pin Backplane Power
Pin Definitions
Pin#
Definition
1 - 4
Ground
5 - 6
+12V
7 - 8
+5V
1
PSU1
6
4
P1_NVMe0 P1_NVMe1
5
3
FAN2
FAN1
49
Chapter 2: Installation
1. PSU1 (Required)
2. PSU2 (Required)
3. BP PWR1 (Required)
4. BP PWR2 (Required)
5. BP PWR3 (Required)
6. BP PWR4 (Required)
7. GPU PWR1 (Required)
8. GPU PWR2 (Required)
9. GPU PWR3 (Required)
10. GPU PWR4 (Required)
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