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2-7
Connecting Cables
Power Connectors
Two SMCI-proprietary power supply units (PSU1/PSU2) are located on the moth-
erboard to provide main power supply to your system. Additionally, three 8-pin
backplane power connectors (JPW1/JPW2/JPW3) are used to provide power to
the backplane devices. See the table below for pin definitions.
GPU Power Connectors
Three power connectors for GPU and VGA devices are located at JGPW1, JGPW2,
and JGPW3. Connect an appropriate cable to each GPU power connector to provide
power for your GPU/VGA devices.
JS1
SXB1_1
SXB1_2
SXB1_3
J1_I2C14
JGPW3
CPU2
FAN8
JL1
12V 8-pin Backplane
Power Connector Pin
Definitions
Pins
1 through 4
5/6
7/8
8-pin GPU PWR Connec-
tor Pin Definitions
Pins
1 through 3
4 through 8
IPMI_
VGA
COM1
LAN
J1_I2C4
J1_I2C12
J1_I2C13
J1_I2C5
J1_I2C6
JLAN3
BMC
LAN
UM11
LEDBMC
CTRL
SXB3_1
U1_BOOT_FLASH
JS3
SAS CTLR
SAS 0~3 SAS 4~7
SAS 8~11
SP1
JGPW1
Battery
JBT1
GPU PWR1
T-SGPIO3
JBAT1
P9DSU-C
REV:1.10
JF2
LEDPWR
FAN3
HDD_LED1
JF1
FAN4
Definition
Ground
+12V
+5V
Definition
+12V
Ground
PSU2
PSU1
BP PWR
JPW1
JPW2
JPW3
CPU1
2-27
Chapter 2: Installation
1. PWR Supply Unit 1
2. PWR Supply Unit 2
3. JPW1 (Backplane PWR1)
4. JPW2 (Backplane PWR2)
5. JPW3 (Backplane PWR3)
6. GPU PWR1
7. GPU PWR2
8. GPU PWR3
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