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12V 8-pin Auxilliary Power Connector (JPWR1)
JPWR1 is an 8-pin ATX power input to provide auxiliary power to the processor. Refer to the
table below for pin definitions.
Important: To provide adequate power to the motherboard, connect the 24-pin and the 8-pin
power connectors to the power supply. Failure to do so may void the manufacturer's warranty
on your power supply and motherboard.
Power SMB Header (PWRI
Power System Management Bus (I
temperatures. See the table below for pin definitions.
12V 8-pin Power Connector
Pin Definitions
Pins
Definition
1 through 4
Ground
5 through 8
+12V
C)
2
C) header monitors power supply, fan and system
2
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V
51
Chapter 4: Motherboard Connections
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