Supermicro SuperServer SYS-440P-TNRT User Manual page 60

Reset Button
The Reset Button connection is located on pins 3 and 4 of JF1. Momentarily contacting both
pins will reset the system. Refer to the table below for pin definitions.
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Refer to the table below
for pin definitions.
Information LED (OH/Fan Fail/PWR Fail/UID LED)
The Information LED (OH/Fan Fail/PWR Fail/UID LED) connection is located on pins 7 and
8 of JF1. The LED on pin 7 is active when the UID switch on the rear I/O panel is pressed.
The LED on pin 8 provides warnings of overheat, power failure, or fan failure. Refer to the
tables below for more information.
Status
Solid red
Blinking red (1Hz)
Blinking red (0.25Hz)
Solid blue
Blinking blue (300 msec)
Reset Button
Pin Definitions (JF1)
Pin# Definition
3 Reset
4 Ground
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5 3.3V
6 PWR Supply Fail
Information LED-UID/OH/PWR Fail/Fan Fail LED
Pin Definitions (JF1)
Description
An overheat condition has occurred. (This may be caused by cable congestion).
Fan failure: check for an inoperative fan.
Power failure: check for a non-operational power supply
Local UID is activated. Use this function to locate a unit in a rack mount
environment that might be in need of service.
Remote UID is on. Use this function to identify a unit from a remote location that
might be in need of service.
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Chapter 4: Motherboard Connections