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12V 8-pin CPU Power Connectors
JPWR1/3/4 are the 8-pin 12V DC power input for the CPU. Refer to the table below for pin
definitions.
4.2 Headers and Connectors
Fan Headers
There are ten fan headers on the motherboard. These are 4-pin fan headers; pins 1-3 are
backward compatible with traditional 3-pin fans. The onboard fan speeds are controlled by
the Thermal Management in the BIOS. When using the Thermal Management setting, please
use 4-pin fans.
SGPIO Headers
There are two Serial Link General Purpose Input/Output (I-SGPIO1 and I-SGPIO2) headers
located on the motherboard. Refer to the tables below for pin definitions.
12V 8-pin Power
Pin Definitions
Definition
Pin#
1 - 4
Ground
5 - 8
+12V
Fan Header
Pin Definitions
Definition
Pin#
1
Ground (Black)
2
2.5A/+12V (Red)
3
Tachometer
4
PWM Control
I-SGPIO Header
Pin Definitions
Definition
Definition
Pin#
Pin#
1
NC
2
NC
3
Ground
4
Data
5
Load
6
Ground
7
Clock
8
NC
NC = No Connection
53
Chapter 4: Motherboard Connections
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