User`s manual

2-12
X7SB4/X7SBE User's Manual
Overheat/Fan Fail LED (OH)
Connect an LED to the OH/Fan Fail con-
nection on pins 7 and 8 of JF1 to provide
advanced warnings of chassis overheat-
ing or fan failure. Refer to the table on
therightforpindenitions.
Power Fail LED
The Power Fail LED connection is lo-
cated on pins 5 and 6 of JF1. Refer to the
tableontherightforpindenitions.
OH/Fan Fail LED
Pin Denitions (JF1)
Pin#Denition
7 Vcc
8 Ground
OH/Fan Fail Indicator
Status
StateDenition
Off Normal
On Overheat
Flash-
ing
Fan Fail
Power Fail LED
Pin Denitions (JF1)
Pin#Denition
5 Vcc
6 Ground
A. OH/Fan Fail LED
B. Power Supply Fail
Power Button
OH/Fan Fail LED
1
NIC1 LED
Reset Button
2
HDD LED
Power LED
Reset
PWR
Vcc
Vcc
Vcc
Vcc
Ground
Ground
1920
Vcc
X
Ground
NMI
X
Vcc
PWR Fail LED
NIC2 LED
B
A
X7SB4