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5-8
Connector Definitions
Power Connectors
Main PWR (JPW1) & GPU PWR
Connectors (JPW2, JPW3)
The 20-pin proprietary main power
connector (JPW1) is used to provide
power to the motherboard. The 8-pin
GPU PWR connector JPW2 is also
required for the graphics processor.
JPW3 is used if additional power to
the GPU is needed for performance
boost. These power connectors
meet the SSI EPS 12V specification.
See the tables on the right for pin
definitions.
Chapter 5: Advanced Motherboard Setup
20-pin Power Connector
Pin Definitions (JPW1)
Pin#
Definition
11
PS_ON_N
12
5V STBY
13
GND6
14
GND7
15
GND8
16
NC2
17
12V_5
18
12V_6
19
12V_7
20
12V_8
12V 8-pin Power Connec-
tor Pin Definitions
Pins
1 through 3
4 through 8
5-15
Pin #
Definition
1
GND1
2
GND2
3
GND3
4
GND4
5
GND5
6
NC1
7
12V_1
8
12V_2
9
12V_3
10
12V_4
Definition
+12V
Ground
(Required)
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