Supermicro H8DGU-LN4F+, User Manual

Page: 33 / 82

Chapter 2: Installation
2-13
2-8 Connector Defi nitions
Power Connectors
A 2 4 - p i n m a i n p o w e r s u p p l y
connector(JPW1) and two 8-pin CPU
PWR connectors (JPW2/JPW3) on the
motherboard. These power connectors
meet the SSI EPS 12V specifi cation.
In addition to the 24-pin ATX power
connector, the 12V 8-pin CPU PWR
connectors at JPW2/JPW3 must also
be connected to your power supply.
See the table on the right for pin
defi nitions.
Warning : To prevent damage to the
power supply or motherboard, please
use a power supply that contains a 24-
pin and two 8-pin power connectors.
Be sure to connect these connectors
to the 24-pin (JPW1) and the two 8-pin
(JPW2,JPW3) power connectors on
the motherboard. Failure in doing so
will void the manufacturer warranty on
your power supply and motherboard.
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
12V 8-pin PWR Connector
Pin Defi nitions
Pins Defi nition
1 through 4 Ground
5 through 8 +12V
Required Connection
Power Connector
The Power Connector is located on
pins 1 and 2 of JF1. Momentarily
contacting both pins will power on/off
the system. This button can also be
confi gured to function as a suspend
button (with a setting in the BIOS - see
Chapter 4). To turn off the power when
set to suspend mode, press the button
for at least 4 seconds. Refer to the
table on the right for pin defi nitions.
Power Button
Pin Defi nitions
(JF1)
Pin# Defi nition
1 Power
2 Ground