Chapter 2: Installation
Overheat (OH)/Fan Fail/Blue UID LED
Connect an LED cable to the Blue UID and OH/Fan Fail connections on pins 7 and 8 of JF1 to display blue UID signals or to provide advanced warn- ings for chassis overheat/fan failure. 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. Refer to the table on the right for pin defini- tions.
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7Vcc/Blue UID LED
8OH/Fan Fail LED
OH/Fan Fail Indicator
Status
State Definition
Off | Normal | |
On | Overheat | |
Flash- | Fan Fail | |
ing |
| |
|
|
PWR Fail LED
Pin Definitions (JF1)
Pin# Definition
5Vcc
6Ground
A. OH/Fan Fail LED B. PWR Supply Fail
Ground
X
Power LED 
HDD LED
NIC1 LED 
NIC2 LED
A
OH/Fan Fail LED
B
Power Fail LED
Ground
Ground
20 | 19 |
2 1
NMI
X
Vcc
Vcc/UID Switch
Vcc
Vcc
A
Vcc/Blue UID LED
Vcc
#3~4
Reset Button #1~2 Power Button