Supermicro SuperServer SYS-111C-NR - Motherboard Headers, Ports, and Slots

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Chapter 4: Motherboard Connections
4.2 Headers and Connectors
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened. Refer to
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Chassis Intrusion
Pin Denitions
Pin# Denition
1 Intrusion Input
2 Ground
4-Pin External BMC I
2
C Header
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect a cable to
this header to use the IPMB I
2
C connection on your system. Refer to the table below for pin
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External I
2
C Header
Pin Denitions
Pin# Denition
1 Data
2 Ground
3 Clock
4 No Connection
Fan Headers
There are six 4-pin fan headers (FAN1-FAN6) on the motherboard. All these 4-pin fan headers
are backwards compatible with the traditional 3-pin fans. However, fan speed control is
available for 4-pin fans only by Thermal Management via the IPMI 2.0 interface. Refer to the
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Fan Header
Pin Denitions
Pin# Denition
1 Ground (Black)
2 2.5A/+12V (Red)
3 Tachometer
4 PWM_Control