Supermicro X7DB3 - Connecting Cables; ATX Power Connector; Processor Power Connector

2-14
X7DB3 User's Manual
GLAN1
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JLAN1
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Buzzer
2-5 Connecting Cables
ATX Power Connector
There are a 24-pin main power sup-
ply connector(JPW1) and an 8-pin
CPU PWR connector (JPW3) on the
motherboard. These power connec-
tors meet the SSI EPS 12V specifi ca-
tion. The 4-pin 12V PWR supply is
required to provide adequate power
to the system. See the table on the
right for pin defi nitions. For the 8-pin
PWR (JPW3), please refer to the item
listed below.
Processor Power Connector
In addition to the Primary ATX power
connector (above), the 12V 8-pin CPU
PWR connector at JPW3 must also
be connected to your power supply.
See the table on the right for pin
defi nitions.
ATX Power 24-pin Connector
Pin Defi nitions
Pin# Defi nition Pin # Defi 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) 8 PWR_OK
21 +5V 9 5VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 COM 12 +3.3V
Required Connection
Required Connection
12V 4-pin Power Con-
nector
Pin Defi nitions
Pins Defi nition
1 and 2 Ground
3 and 4 +12V
12V 8-pin Power CPU
Connector
Pin Defi nitions
Pins Defi nition
1 through 4 Ground
5 through 8 +12V
A. 24-pin ATX PWR
B. 8-pin Processor PWR
C. 4-pin PWR
A
B
C