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SuperServer SYS-2049U-TR4 User's Manual
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.
Please review the Safety Precautions in Chapter 3 before installing or removing components.
4.1 Power Connections
Power Supply Unit Connectors
Two main power supply unit connectors (PSU1/PSU2) are located on J24/J25 on the
motherboard. Connect these connectors to your power supply to provide power to your
system. See the layout drawing below for the locations of PSU1 and PSU2.
12V 8-pin CPU Power Connectors
In addition to the main power supply units, there are seven 8-pin 12V DC power connectors
located on the motherboard. Four of these 8-pin power connectors (JPWR1-JPWR4) are
used for GPU devices, and the remaining three (JPWR5-JPWR7) are used for backplane
devices. Additionally, J12VSB, located between PSU1/PSU2, provides 12V standby power
to the system. Refer to the tables below for pin definitions.
GPU Power (JPWR1-4)
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 +12V
Back Panel Power (JPWR5-7)
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 6 +12V
7 - 8 +5V