Supermicro SuperServer 5019A-12TN4 - Chapter 4: Motherboard Connections; Motherboard Power Connections

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Chapter 4: Motherboard Connections
Chapter 4
Motherboard Connections
This section describes the connections on the motherboard and provides pinout denitions.
Note that depending on how the system is congured, not all connections are required. The
LEDs on the motherboard are also described here. A serverboard 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
Main ATX Power Supply Connector
The primary power supply connector (JPW1) meets the ATX SSI EPS 24-pin specication.
JPV1 is the 12V DC power connector that provides alternative power for special enclosure
when the 24-pin ATX power is not in use. JPH1 is a 4-pin HDD power connector that provides
power to onboard HDD devices.
ATX Power 24-pin Connector
Pin Denitions
Pin# Denition Pin# Denition
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 COM 3 COM
16 PS_ON 4 +5V
17 COM 5 COM
18 COM 6 +5V
19 COM 7 COM
20 Res (NC) 8 PWR_OK
21 +5V 9 5VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 COM 12 +3.3V
4-pin HDD Power
Pin Denitions
Pin# Denition
1 12V
2-3 Ground
4 5V
+12V 4-pin Power
Pin Denitions
Pin# Denition
1-2 Ground
3-4 +12V