Connecting Cables; Atx Main Pwr & Cpu Pwr Connectors - Supermicro Supero X9SCi-LN4 User Manual

2-6

Connecting Cables

This section provides brief descriptions and pin-out definitions for onboard headers
and connectors. Be sure to use the correct cable for each header or connector.
ATX Main PWR & CPU PWR
Connectors
The 24 - pin main power connector
(JPW1) is used to provide power to
the motherboard. The 8-pin CPU PWR
connector (JPW2) is also required for
the processor. These power connectors
meet the SSI EPS 12V specification. See
the table on the right for pin definitions.
A
24-Pin Main PWR
A. 24-Pin ATX Main PWR
B. 8-Pin Processor PWR
B
8-Pin Processor PWR
2-25
Chapter 2: Installation
ATX Power 24-pin Connector
Pin Definitions (JPW1)
Pin# Definition Pin #
13 +3.3V 1
14 -12V 2
15 COM 3
16 PS_ON 4
17 COM 5
18 COM 6
19 COM 7
20 Res (NC) 8
21 +5V 9
22 +5V 10
23 +5V 11
24 COM 12
12V 8-pin Power Connec-
tor Pin Definitions
Pins Definition
1 through 4 Ground
5 through 8 +12V
(Required)
B
A
Definition
+3.3V
+3.3V
COM
+5V
COM
+5V
COM
PWR_OK
5VSB
+12V
+12V
+3.3V