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Fan Headers
There are three fan 4-pin headers.
Pins 1-3 are backward compatible
with the traditional 3-pin fans, but you
can use 4-pin fans to take advantage
of the fan speed control using Pulse
Width Modulation through the BMC.
This allows the fan speeds to be auto-
matically adjusted based on the moth-
erboard temperature. Refer to the
table on the right for pin definitions.
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the motherboard (not
supported in this server).
System Management Bus Header
A System Management Bus header
for IPMI 2.0 is located at JIPMB1.
Connect the appropriate cable here
to use the IPMI I
2
your system.
DOM PWR Connector (JSD1)
The Disk-On-Module (DOM) power
connector, located at JSD1, provides
5V power to a solid-state DOM storage
device connected to one of the SATA
ports. See the table on the right for
pin definitions.
C connection on
4-13
Chapter 4: Advanced Motherboard Setup
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
+12V (Red)
3
Tachometer
4
PWM_Control
Chassis Intrusion
Pin Definitions (JL1)
Pin#
Definition
1
Intrusion Input
2
Ground
SMBus Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
DOM PWR
Pin Definitions
Pin#
Definition
1
5V
2
Ground
3
Ground
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