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A+ Server AS -2013S-C0R User's Manual
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
below 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
Standby Power Header (JSTBY1)
The Standby Power header is located at JSTBY1 on the motherboard.
Standby Power
Pin Definition
Pins
Definition
1
+5V Standby
2
Ground
3
Wake-up
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
