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Overheat/Fan Fail LED (OH)
Connect an LED to the OH/Fan Fail connection on pins 7 and 8 of JF1 to provide advanced warnings of chassis overheating or fan failure. Refer to the table on the right for pin definitions.
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7Vcc
8Ground
OH/Fan Fail Indicator
Status
State Definition
Off  | Normal  | |
On  | Overheat  | |
Flash-  | Fan Fail  | |
ing  | 
  | |
  | 
  | 
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.
PWR Fail LED
Pin Definitions (JF1)
Pin# Definition
5Vcc
6Ground
A. OH/Fan Fail LED B. PWR Supply Fail
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Ground![]()
X
Power LED
HDD LED
NIC1 LED
NIC2 LED
OH/Fan Fail LED
A
PWR Fail LED
B
Ground
Ground
20  | 19  | 
  | NMI  | 
  | X  | 
  | Vcc  | 
  | Vcc  | 
  | Vcc  | 
  | Vcc  | 
  | Vcc  | 
  | Vcc  | 
  | Reset  | 
  | PWR  | 
2  | 1  | 
Reset Button
Power Button