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Overheat (OH)/Fan Fail/PWR Fail/
UID LED
Connect an LED cable to pins 7 and
8 of Front Control Panel to use the
Overheat/Fan Fail/Power Fail and
UID LED connections. The blue LED
on pin 7 works as the front panel UID
LED indicator. The red LED on pin 8
works provides warnings of overheat,
fan failure or power failure. The red
LED takes precedence over the blue
LED by default. Refer to the table on
the right for pin definitions.
Power Fail LED
The Power Fail LED connection is
located on pins 5 and 6 of JF1. Re-
fer to the table on the right for pin
definitions.
JUIDB1
VGA
BMC
LAN2/LAN4
JI2C1
A1SAi/A1SRi Series Motherboard
Rev. 1.00
JI2C2
Battery
JWD1
JF1
1
J3
SP1
USB2.0-0/1
USB3.0-0/1
IPMI_LAN
LAN1/LAN3
Marvell
PHY
BIOS
JBT1
CPU
2-17
OH/Fan Fail/PWR Fail/Blue UID
LED Pin Definitions (JF1)
Pin#
Definition
7
BLue UID LED
8
OH/Fan Fail/Power Fail Cathode
PWR Fail LED
Pin Definitions (JF1)
Pin#
5
3.3V
6
PWR Supply Fail
COM1
Ground
FP PWRLED
HDD LED
NIC1 Activity LED
NIC2 Activity LED
B
OH/Fan Fail/PWR Fail
C
Power Fail LED
FAN3
Ground
FAN1
Ground
Chapter 2: Installation
Definition
A. (Blue) UID LED
B. (Red) OH/Fan Fail/PWR
Fail LED
C. PWR Fail
20
19
NMI
X
X
3.3 V
3.3V Stby
3.3V Stby
3.3V Stby
A
UID LED
3.3V
Reset
Reset Button
Power Button
PWR
2
1
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