Chapter 2: Installation
2-7
2-6 Connecting
Cables
Power Supply Connectors
T h e p r i m a r y p o w e r s u p p l y
connector(J7) on the P4SPA+/P4SPE
meets the SSI (Superset ATX) 20-pin
specifi cation. Refer to the table on the
right for the pin defi nitions of the ATX
20-pin power connector. You must
also connect the 4-pin (J9) processor
power connector to your power sup-
ply. Refer to the table below right for
the J9 (12V) connector.
Pins #
1 & 2
3 & 4
Definition
Ground
+12 V
+12V 4-pin
Connector
(J9)
Pin #
Definition
11
+3.3V
12
-12V
13
COM
14
PS_ON
15
COM
16
COM
17
COM
18
-5V
19
+5V
20
+5V
Pin #
Definition
1
+3.3V
2
+3.3V
3
COM
4
+5V
5
COM
6
+5V
7
COM
8
PW -OK
9
5VSB
10
+12V
ATX 20-pin Power Connector
Pin Definitions (J7)
Required Con-
nection
IR Connector
The infrared connector is located on
pins 2,4,6,8, and 10 of JF1. See the
table on the right for pin defi nitions.
See the Technical Support section of
our web page for information on the
infrared devices you may use in the
system.
Pin
Number
2
4
6
8
10
Definition
+5V
CIRRX
IRRX
Ground
IRTX
Infrared Pin
Definitions
(JF1)
PW_ON Connector
The PW_ON connector is located
on pins 18 and 20 of JF1. Connect
it to the chassis power button. You
may also confi gure the system to the
suspend mode (see the Power But-
ton Mode setting in BIOS). To turn
off power when the suspend mode is
enabled, press the power button for 4
seconds or more. See the table on
the right for pin defi nitions.
Pin
Number
20
18
Definition
PW _ON
Ground
PW_ON
Pin Definitions
(JF1)
