2-14
X7DWT/X7DWT-INF
User's
Manual
JPL1
J_VMEM
JL1
LE2
LE1
JBT1
LAN1
LAN2
BIOS
SIMSO IPMI
LAN
CTRL
Battery
LE3
J4
VGA
CTRL
SMB
JPL2
SGPIO
CPLD
Intel 5400
North Bridge
CPU 2
FP CTRL
JWD
CPU 1
FAN1/2
20-Pin PWR
PWSMB
CTRL
InfiniBand
DIMM2B
DIMM2A
DIMM1B
DIMM1A
20-Pin PWR
4-Pin Aux. PWR
S I/O
JPG1
JWOL
Intel ESB2
South Bridge
FAN3/4
JSPK
COM1
SATA2
DIMM4B
FPUSB2/3
BANK4
USB0/1
DIMM4A
DIMM3B
DIMM3A
BANK3
BANK2
BANK1
VGA
SATA3
SATA0
SATA1
PCI-Express x16
FAN5/6
FAN7/8
Infini-
B
and
X7DWT-INF
2-5 Connecting
Cables
A. The right side 20-pin
PWR connector: (JWR1)
B. The left side 20-pin
PWR connector: (JWR2)
C. 20-pin PWR Cable
A
B
2 0 - p i n Pr o p r i e t a r y Po w e r
Connectors
There are two 20-pin main power supply
connectors (JWR1, JWR2) and a 4-pin
auxiliary power connector (JP10) on the
motherboard. These power connectors
meet the SSI EPS 12V specifi cation. For
power supply to work properly, please
follow the instructions given below. See
the table on the right for pin defi nitions.
Also refer to the layout below for the
PWR connector locations.
ATX Power 20-pin Connector
Pin Defi nitions
Pin# Defi nition Pin # Defi nition
11
PS On
1
Ground
12
5VSB
2
Ground
13
Ground
3
Ground
14
Ground
4
Ground
15
Ground
5
Ground
16
NC2
6
NC1
17
12V
7
12V
18
12V
8
12V
19
12V
9
12V
20
12V
10
12V
Note 1:
You cannot use both 20-pin power connectors located at JWR1 (the right
side connector) and JWR2 (the left side connector) as input power supply connec-
tors at the same time. Only one connector can be used for input power supply to
the motherboard at a time. For proper use of these proprietary PWR Connectors,
please customize your PWR cables based on the SMC PWR Connector Pin-Out
Defi nitions listed above.
Note 2
: The black square (dot) on a power connector indicates the location of Pin
1. (See the pictures below for the power cable connections.)
C
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