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SSG-6049P-E1CR24H/L User's Manual
4.2 Headers and Connectors
Fan Headers
There are eight 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
Thermal Management in the BIOS. When using Thermal Management setting, please use
all 3-pin fans or all 4-pin fans.
Required Connection
Processor Power Connector
JPWR1, JPWR2 and JPWR4 are the 8-pin 12V DC power input for the CPU or alternative
single power source for a special enclosure when the 24-pin ATX power is not in use.
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
+12V (Red)
3
Tachometer
4
PWM Control
12V 8-pin Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 +12V
Power SMB (I
2
C) Header
The Power System Management Bus (I
2
C) connector (JPI
2
C1) monitors the power supply,
fan, and system temperatures.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PMBUS_Alert
4
Ground
5
+3.3V