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Chapter 4: Motherboard Connections
Chapter 4
Motherboard Connections
This section describes the connections on the motherboard and provides pinout definitions.
Note that depending on how the system is configured, not all connections are required. The
LEDs on the motherboard are also described here. A motherboard layout indicating component
locations may be found in
. More detail can be found in the
Please review the Safety Precautions in
before installing or removing components.
4.1 Power Connections
The motherboard has four large power supply connectors (JPW1/JPW2/JPW3/JPW4) that
plug into the backplane to provide power to the system. In addition, three 8-pin 12VDC power
connectors (JPW11~13) are used to provide power to backpanel devices. Another ten 8-pin
power connectors (JPWR1~5, JPWR6~10) are used for GPU devices. Please connect all
these power connectors to your power supplies to provide adequate power to your system.
12V 8-pin Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 +12V
8-pin Backplane Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 6 +12V
7 - 8 +5V
8-Pin GPU Power Connectors
Ten 8-pin 12V power connectors (located at JPWR1~5, JPWR6~10) are used to provide
power to GPU devices. Refer to the table below for pin definitions.
8-Pin Backplane Power Connectors
Three 8-pin backplane power connectors (located at JPW11~13), are used to provide power
to the devices connected to the backplane. Refer to the table below for pin definitions.
