Warning: To provide adequate power supply
to the motherboard, be sure to connect the
24-pin ATX PWR (J24), and the two 8-pin
PWR connectors (JPWR1, JPWR2) to the
power supply. Failure to do so may void the
manufacturer warranty on your power supply
and motherboard.
2-7 Connecting Cables
Power Connectors
A 24-pin main power supply connector
(J24), and two 8-pin CPU power connec-
tors (JPWR1/JPWR2) are located on the
motherboard. These power connectors
meet the SSI EPS 12V specication and
must be connected to your power supply
to provide adequate power to the system.
See the tables on the right for pin deni-
tions.
A. J24: 24-pin ATX PWR
(Req'd)
B. JPWR1: 8-pin Proces-
sor PWR (Req'd)
C. JPWR2: 8-pin Proces-
sor PWR (Req'd)
A
B
C
ATX Power 24-pin Connector
Pin Denitions (JPW1)
Pin# Denition Pin # Denition
13 +3.3V 1 +3.3V
14 -12V (NC) 2 +3.3V
15 GND 3 GND
16 PS_ON 4 +5V
17 GND 5 GND
18 GND 6 +5V
19 GND 7 GND
20 Res (NC) 8 PWR_OK
21 +5V 9 5VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 GND 12 +3.3V
(Required)
12V 8-pin Power Connec-
tor Pin Denitions
Pins Denition
1 through 4 Ground
5 through 8 +12V