 2-8
2-8H8QM3-2/H8QMi-2 User's Manual
Overheat/Fan Fail LEDConnect an LED to the OH connection 
on pins 7 and 8 of JF1 to provide ad-
vanced warning of chassis overheat-
ing.  Refer to the table on the right for 
pin defi nitions and status indicators.  
NIC1 LEDThe NIC1 (Network Interface Control-
ler) LED connection is located on pins 
11 and 12 of JF1.  Attach the NIC1 
LED cable to display network activity.  
Refer to the table on the right for pin 
defi nitions.  
NIC2 LEDThe NIC2 (Network Interface Control-
ler) LED connection is located on pins 
9 and 10 of JF1.  Attach the NIC2 
LED cable to display network activity.  
Refer to the table on the right for pin 
defi nitions.  
OH/Fan Fail LED
Pin Defi nitions (JF1)
Pin#     Defi nition     
7 Vcc
8 Control
NIC1 LED
Pin Defi nitions (JF1)
Pin#     Defi nition     
11 Vcc
12 NIC1 Active
NIC2 LED
Pin Defi nitions (JF1)
Pin#     Defi nition     
9 Vcc
10 NIC2 Active
HDD LEDThe HDD (IDE Hard Disk Drive) LED 
connection is located on pins 13 and 
14 of JF1.  Attach the IDE hard drive 
LED cable to display disk activity.  
Refer to the table on the right for pin 
defi nitions.    
HDD LED
Pin Defi nitions (JF1)
Pin#     Defi nition     
13 Vcc
14 HD Active
OH/Fan Fail 
LED Status
State    Indication     
Solid Overheat
Blinking Fan fail
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 ni-
tions.  (Feature is only available with 
redundant power supply systems.)  
Power Fail LED
Pin Defi nitions (JF1)
Pin#     Defi nition     
5 Vcc
6 Control