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H8DGU-LN4F+ Serverboard User's Manual
Reset Connector
The reset connector is located on
pins 3 and 4 of JF1 and attaches
to the reset switch on the computer
chassis. See the table on the right for
pin defi nitions.
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 defi nitions.
Overheat (OH)/Fan Fail/PWR 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 connections.
The Red LED on pin 8 provides
warnings of an overheat, fan failure
or power failure. The Blue LED on pin
8 works as the UID LED indicator for
the front panel UID switch. Refer to the
table on the right for pin defi nitions.
NIC2 (Link/Activity) LED
The LED connections for LAN2 link/
activity are on pins 9 and 10 of JF1.
Attach LAN LED cables to display
network activity. See the table on the
right for pin defi nitions.
NIC1 (Link/Activity) LED
The LED connections for LAN1 link/
activity are on pins 11 and 12 of JF1.
Attach LAN LED cables to display
network activity. See the table on the
right for pin defi nitions.
Reset Button
Pin Defi nitions
Pin# Defi nition
3
4
PWR Fail LED
Pin Defi nitions
Pin# Defi nition
5
6
OH/Fan Fail/ PWR Fail (Red) LED
and UID (Blue) LED
Pin Defi nitions (JF1)
Pin# Defi nition
7
Vcc
8
OH/Fan Fail/PWS Fail (Red) LED
and UID (Blue) LED
OH/Fan Fail/PWR Fail
LED Status (Red LED)
State
Off
On
Flashing
Pin Defi nitions
Pin# Defi nition
9
10
Pin Defi nitions
Pin# Defi nition
11
12
2-14
(JF1)
Reset
Ground
(JF1)
3.3V
Power Fail LED
Indication
Normal
Overheat
Fan Fail
NIC2 LED
(JF1)
Activity
Link
NIC1 LED
(JF1)
Activity
Link
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