User`s guide
Chapter 5: Advanced Serverboard Setup
5-25
Overheat (OH)/Fan Fail/UID LED
Connect an LED cable to pins 7 and 8 of JF1 to use
the Overheat/Fan Fail/Power Fail and UID LED con-
nections. The Red LED on pin 8 provides warnings of
an overheat, fan failure or power failure. The Blue LED
on pin 7 works as the UID LED indicator for the front
panel UID switch located on pins 13~14 of JF1. When
Jumper J_UID_OW is set to off (default), the Red LED
takes precedence over the Blue LED. Refer to the table
on the right for pin denitions.
Power Fail LED
The Power Fail LED connection is located on pins 5
and 6 of JF1. Refer to the table on the right for pin
denitions.
OH/Fan Fail/PWR Fail/
Blue_UID LED Pin
Denitions(JF1)
Pin# Denition
7 Blue_LED_Cathode
(UID)/5.5V.SB
8 OH/Fan fail/PWR Fail/
UID LED (red)
OH/Fan Fail/PWR Fail LED
Status (Red LED)
State Denition
Off Normal
On Overheat
Flashing Fan Fail
A: OH/Fan Fail/PWR Fail/UID LED
B: PWR Supply Fail
PWR Fail LED Pin
Denitions(JF1)
Pin # Denition
5 3.3V
6 PWR Fail LED