Chapter 4 Motherboard Connections; Power Connections - Supermicro AS -5014A-TT User Manual

A+ Workstation AS -5014A-TT User's Manual
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. The motherboard layout indicating
component locations may be found in Chapter 1.
Please review the Safety Precautions in Appendix A before installing or removing components.

4.1 Power Connections

ATX Power Supply Connector
The 24-pin power supply connector (JPW1) meets the ATX SSI EPS 12V specification. You
must also connect the 8-pin (JPW2~JPW4) CPU power connectors to the power supply.
Chapter 4
ATX Power 24-pin Connector
Pin Definitions
Pin# Definition Pin# Definition
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 Ground 3 Ground
16 PS_ON 4 +5V
17 Ground 5 Ground
18 Ground 6 +5V
19 Ground 7 Ground
20 Res (NC) 8 PWR_OK
21 +5V 9 5VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 Ground 12 +3.3V
Required Connection
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