2-24

C7Z87-OCE User’s Manual
2-7 Connecting Cables
This section provides brief descriptions and pin-out denitions for onboard headers
and connectors. Be sure to use the correct cable for each header or connector. For
information on Backpanel USB and Front Panel USB ports, refer to Page 2-17. For
Front Panel Audio, please refer to Page 2-19.
A. 24-Pin ATX Main PWR
B. 8-Pin PWR
ATX Power 24-pin Connector
Pin Denitions (JPW1)
Pin# Denition Pin # Denition
13 +3.3V 1+3.3V
14 -12V 2+3.3V
15 COM 3 COM
16 PS_ON 4+5V
17 COM 5 COM
18 COM 6 +5V
19 COM 7 COM
20 Res (NC) 8PWR_OK
21 +5V 95VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 COM 12 +3.3V
(Required)
12V 8-pin Power Connec-
tor Pin Denitions
Pins Denition
1 through 4 Ground
5 through 8 +12V
ATX Main PWR & CPU PWR
Connectors (JPW1 & JPW2)
The 24-pin main power connector
(JPW1) is used to provide power to
the motherboard. The 8-pin CPU
PWR connector (JPW2) is also
required for the processor. These
power connectors meet the SSI EPS
12V specicat ion. See the table on
the right for pin denitions.
24-Pin Main PWR
A
B