K8X800 PRO II Mainboard
13
Front Panel In
HD LED (Hard Drive LED Connector)
This connector can be attached to an LED on the front panel of a computer case. The LED will
flicker during disk activity. This disk activity only applies to those IDE drives directly attached to the
system board.
RST SW (Reset Switch Connector)
This connector an be attached to a momentary SPST switch. This switch is normally left open.
un the POST (Power On Self Test).
puter case. You can attach it to the 2-pin power LED connector. The LED will
er Button
y to switch on or off (the time required is
nector)
ere is a 3-pin power LED cable on the front
elf-Test, the speaker
sounds “irregular beep” to warning you.
dicator: SW/LED
、
PWRLED
、
SPEAKER
c
When closed it will cause the mainboard to reset and r
PWR-LED (2-pin Power LED Connector)
The mainboard provides two power LED connector.If there is a 2-pin power LED cable on the front
panel of a com
illuminate while the computer is powered on.
PWR SW (Power on Switch Connector)
This connector can be attached to a front panel power switch. The switch must pull the Pow
pin to ground for at least 50 ms to signal the power suppl
due to internal debounce circuitry on the system board). At least two seconds must pass before the
power supply will recognize another on/off signal.
PWR-LED (3-Pin Power LED Con
The mainboard provides two power LED connector. If th
panel of a computer case. You can attach it to the 3-pin power LED connector.
SPEAKER (Speaker Header)
A front panel speaker can be connected to this connector. When you boot your computer, the speaker
sounds a short “beep”. If there is something wrong during the Power On S
+
-
1
2
3
PWRLED
PC_BEEP
NC
Ground
+5V
1
2
3
4
SPEAKER
1
HD LED (+)
Power LE
Power LE
Power Bu
Power Bu
NC
HD LED (-)
Reset Control (-)
Reset Control (+)
NC
9
2
10
D (+)
D (-)
tton (+)
tton (-)
SW/LED
Hard Driver
LED
Reset
Button
Power
LED
Power-on
Button
U1
0
Wi
n
b
o
n
d
W8
3
6
9
7
H
F
BI
O
S
BI
O
S
U1
6
V
IA
V
t8
2
3
7
VT
16
16
V
IA
K
8
T
800
So
cket
754
V oi
ce
G
e ni
e
C H
IP
VI
A
VT
1720
VI
A
VT
6307
1
AU
X
F
A
N
3C
OM
3C
940
