Datasheet
2-8
P8SCT User's Manual
NIC1 LED
Power Button
Overheat/Fan Fail LED
1
Reset Button
2
IDE/SATA LED
Power On LED
Reset
Signal
Vcc 3
Vcc 3
Ground
1920
Vcc 3 STB
X
Ground
NMI
X
Reserved
NIC2 LED
Ground
Reserved
Vcc 3 STB
Vcc 5 STB
PW_ON Connector
The PW_ON connector is located
on pins 1 and 2 of JF1.
2-6 Connecting Cables
Power Supply Connectors
The primary power supply connec-
tor (PW1) on the P8SCT meets the
SSI (Superset ATX) 24-pin speci-
fication. Refer to the table on the
right for the pin definitions of the
ATX 24-pin power connector.
You must also connect the 4-pin
(PW2) processor power connec-
tor to your power supply. Refer
to the table below right for the
PW2 (12V) connector.
Pins #
1 & 2
3 & 4
Definition
Ground
+12 V
+12V 4-pin
Connector
Required
Connection
ATX Power Supply 24-pin Connector
Pin Definitions
Pin Number Definition
13 +3.3V
14 -12V
15 COM
16 PS_ON#
17 COM
18 COM
19 COM
20 Res(NC)
21 +5V
22 +5V
23 +5V
24 COM
Pin Number Definition
1 +3.3V
2 +3.3V
3 COM
4 +5V
5 COM
6 +5V
7 COM
8 PWR_OK
9 5VSB
10 +12V
11 +12V
12 +3.3V
KB/MS
USB1/2
Parallel Port
ATX-24 Pin PWR
JPWAKE1
4-Pin
PWR
CPU
(CopperRiver)
NorthBridge
GLAN1
GLAN2
DIMM 1A (blue)
G
L
A
N
CT
R
L
JPL1
JPL2
PCI-X 64 bit/133 MHz
(LGA 775)
ID
E
F
a
n
3
F
a
n
2
JF1
Fan1
Fan5
PXH-V
JP
A
1
IPMI
B
u
zze
r
J9
LE1
E7221
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
PCI#1
PCI#2
PCI#3
PCI-32 bit/33 MHz
PCI#4
PCI#5
PCI-X#6
S I
/O
C
O
M
2
JK1
JWO
R
JWOL
JWD
F
lo
p
py
USB
3
/4
USB
5
/6
J
L1
Fan4
JFSB2
JFSB1
SAT
A0
SAT
A1
SAT
A2
SAT
A3
J
L
E
D
JBT1
B
IOS
J
S
L
E
D
ICH6R
South
Bridge
Bank1
Bank2
Battery
JPF
G
L
A
N
CT
R
L
JP1
JP2
JP3
JPUSB1
DIMM 2A (blue)
DIMM 1B (black)
DIMM 2B (black)
JPUSB2
COM1
VGA
KB/MS
1
/2
ATX-24 Pin PWR
JPWAKE1
4-Pin
PWR
Fan1
Fan5
JFSB2
JFSB1
JPUSB1
ATX PWR 12V 4-Pin PWR
PWR-On
Pin #
1
2
Definition
Signal
GND
PW_ON
Pin Definitions
(JF1)