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Chapter 2: Installation
Sensor Header (JSEN1)
This header (JSEN1) allows BMC to monitor thermal inlet temperature. A special module is
required. Please contact Supermicro at www.supermicro.com to purchase the module for
thisheader. Refer to the table below for pin definitions
Intel Sensor Header
Pin Definitions
Pin#
Definition
1
SMBDAT
2
Ground
3
SMBCLK
4
3.3V STBY
Chassis Intrusion (JL1)
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to the header to inform you when the chassis is opened.
Chassis Intrusion
Pin Definitions
Pins
Definition
1
Ground
2
Intrusion Input
Overheat LED/Fan Fail (JOH1)
The JOH1 header is used to connect an LED indicator to provide warnings of chassis
overheating or fan failure. This LED will blink when a fan failure occurs. Refer to the table
on right for pin definitions.
Overheat / Fan Fail
Pin Definitions
Pins
Definition
1
5vDC
2
OH Active
Overheat / Fan Fail
LED Status
Status
Definition
Off
Normal
On, Solid
Overheat
On, Blinking
Fan Failure
IPMB System Management Bus Header (JIPMB1)
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system.
IPMB Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection