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2-7
Connecting Cables
This section provides brief descriptions and pin-out definitions 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.
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 specification. See the table on
the right for pin definitions.
24-Pin Main PWR
LE5
LE6
JI2C2
JI2C1
J19
J18
JPG1
JPME1
JPME2
BIOS
LICENSE
BAR CODE
MAC CODE
JBT1
IPMI CODE
I-SATA0
I-SATA3
I-SATA1
SPKR1
I-SATA2
I-SATA5
SW1
VGA
BMC
PCH
Battery
BIOS
JSD1
ATX Power 24-pin Connector
Pin#
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
USB2/3
USB4/5
COM1
LAN2
LAN1
IPMI
_LAN
X10SLA(-F)
Rev. 1.01
CPU
2-27
Chapter 2: Installation
Pin Definitions (JPW1)
Pin #
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
12V 8-pin Power Connec-
tor Pin Definitions
Pins
Definition
1 through 4
Ground
5 through 8
+12V
(Required)
A. 24-Pin ATX Main PWR
B. 8-Pin PWR
B
A
LE3
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