Chapter 2: Installation
Overheat/Fan Fail LED (OH)
Connect an LED to the OH/Fan Fail connection on pins 7 and 8 of JF1 to provide advanced warning of chassis overheating or fan failure. Refer to the table on the right for pin defi nitions.
OH/Fan Fail Indicator
Status
State |
| Defi nition |
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. Refer to the table on the right for pin defi ni- tions.
PWR Fail LED
Pin Defi nitions (JF1)
Pin# Defi nition
5Vcc
6PWR Fail
A. OH/Fan Fail LED
B. PWR Supply Fail
Header Pins
Ground
X
Power LED
HDD LED
NIC1 LED
NIC2 LED
ABlue_LED_Cathode (UID)/Vcc
PWR Fail LED
Ground
Ground
20 19
NMI
X
Vcc
UID Switch/Vcc
Vcc
Vcc
OH/Fan Fail/
PWR Fail/UID LED
Vcc |
|
Reset | FP Reset Button |
PWR | FP Power ButtonB |
21
