SUPER MICRO Computer 2022G-URF user manual Connector Definitions, Power Connectors, Pwon Connector

Chapter 5: Advanced Serverboard Setup

5-8 Connector Definitions

Power Connectors

A 20-pin main power supply connector(JPW1) and two 8-pin CPU PWR connectors (JPW2/JPW3) on the motherboard. These power connectors meet the SSI EPS 12V specification. In addition to the 20-pin ATX power connector, the 12V 8-pin CPU PWR connectors at JPW2/JPW3 must also be connected to your power supply. See the table on the right for pin definitions.

Warning: To prevent damage to the power supply or motherboard, please use a power supply that contains a 20-pin and two 8-pin power connectors. Be sure to connect these connectors to the 20-pin (JPW1) and the two 8-pin (JPW2,JPW3) power connectors on the motherboard. Failure in doing so will void the manufacturer warranty on your power supply and motherboard.

ATX Power 20-pin Connector

Pin Definitions (JPW1)

Pin#	Definition	Pin #		Definition
11	+3.3V		1	+3.3V
12	-12V		2	+3.3V
13	COM		3	COM
14	PS_ON		4	+5V
15	COM		5	COM
16	COM		6	+5V
17	COM		7	COM
18	NC		8	PWR_OK
19	+5V		9	5VSB
20	+5V		10	+12V

12V 8-pin PWR Connector
Pin Definitions (JPW2/JPW3)
Pins	Definition
1 through 4	Ground
5 through 8	+12V

Required Connection

PW_ON Connector

The PW_ON connector is on pins 1 and 2 of JF1. This header should be connected to the chassis power button. See the table on the right for pin definitions.

Reset Connector

The reset connector is located on pins 3 and 4 of JF1 and attaches to the reset switch on the computer chassis. See the table on the right for pin definitions.

Power Button

Pin Definitions

(JF1)

Pin# Definition

1PW_ON

2Ground

Reset Button

Pin Definitions

(JF1)

Pin# Definition

3Reset

4Ground

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