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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
Chapter 1
. More detail can be found in the
Motherboard Manual
Please review the Safety Precautions in
Appendix A
before installing or removing components.
4.1 Power Connections
Two power connections supply the motherboard and several more supply for onboard devices.
Main Power Connector
Two proprietary main power headers are located at PSU1 and 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 main power headers, eight 8-pin power connectors are also located on the
motherboard to supply power to the storage disk backplane and other high-powered devices.
GPU Power Connectors, JGPW1-4, are used for GPU devices, while JPW1-4 are used for
backplane devices. Use the appropriate power cable to make a connection between these
connectors and the storage disk backplane and high-powered GPU cards (if installed).
8-pin Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 +12 V
