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2-6
Connecting Cables
ATX Power Connector
The main power supply connector
(JPW1) on the X7SBi meets the SSI
(Superset ATX) specifi cation. You
can only use a 24-pin power supply
cable on the motherboard. Make sure
that the orientation of the connector
is correct. You must also use the
8-pin (JPW2) processor power con-
nector for adequate power supply to
the system (below.) See the table on
the right for pin defi nitions.
Processor Power Connector
In addition to the Primary ATX power
connector (above), the 12V 8-pin Pro-
cessor connector at JPW2 must also
be connected to your power supply
to provide adequate power supply to
the system.
A
ATX 24-Pin PWR
CPU Fan
JUSB1
Intel 3210
MCH
DIMM1A
DIMM1B
DIMM2A
DIMM2B
Intel
JPL1
LAN
Buzzer
CTRL
Slot6 SXB1 PCI-Exp. x8
Intel
LAN
CTRL
BIOS
Intel ICH9R
ATI
ES1000
VGA
CTRL
Slot1 PCI 33 MHz
JPG1
2
2
JI
C2
JI
C1
JWOL
USB8/9
USB6/7
Printer
COM2
B
SMB PS
Fan1
8-Pin PWR
Xeon
3000/3200
CPU
JOH
Slot6 SXB2 PCI-X 133 MHz
PXH-V
Battery
ITE
IDE CTRL
T-SGPIO1
T-SGPIO2
Super I/O
JBT1
JWOR
SATA5
SATA4
SATA3
SATA2
SATA1
SATA0
FP USB11
FP USB10
2-13
Chapter 2: Installation
ATX Power 24-pin Connector
Pin Defi nitions
Pin#
Defi nition
Pin #
13
+3.3V
1
14
-12V
2
15
COM
3
16
PS_ON
4
17
COM
5
18
COM
6
19
COM
7
20
Res (NC)
8
21
+5V
9
22
+5V
10
23
+5V
11
24
COM
12
Secondary Power
Connector
Pin Defi nitions
Pins
Defi nition
1 through 4
Ground
5 through 8
+12V
A. 24-Pin ATX PWR
B. 8-Pin 12V PWR
JLED1
Fan2
Fan3
JL1
JWD
Speaker
Fan4
Defi nition
+3.3V
+3.3V
COM
+5V
COM
+5V
COM
PWR_OK
5VSB
+12V
+12V
+3.3V
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