Connector Defi Nitions; Power Connectors; Pw_On Connector; Reset Connector - Supermicro H8DGU User Manual

H8DGU-F Serverboard User's Manual
2-7 Connector Defi nitions

Power Connectors

A 20-pin main power supply 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 20-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 20-pin and two 8-pin
power connectors. Be sure to connect these
connectors to the 20-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.

PW_ON Connector

The PW_ON connector is on pins 1 and 2 of
JF1. This header should be connected to the
chassis power button. See the table on the
right for pin defi nitions.

Reset Connector

The reset connector is located on pins 3 and
4 of JF1 and attaches to the reset switch on
the computer chassis. See the table on the
right for pin defi nitions.
ATX Power 20-pin Connector
Pin Defi nitions (JPW1)
Pin# Defi nition
11 +3.3V
12 -12V
13 COM
14 PS_ON
15 COM
16 COM
17 COM
18 NC
19 +5V
20 +5V
12V 8-pin PWR Connector
Pin Defi nitions (JPW2/JPW3)
Pins
1 through 4
5 through 8
Required Connection
Pin# Defi nition
1
2
Pin# Defi nition
3
4
2-10
Pin # Defi nition
1 +3.3V
2 +3.3V
3 COM
4 +5V
5 COM
6 +5V
7 COM
8 PWR_OK
9 5VSB
10 +12V
Defi nition
Ground
+12V
Power Button
Pin Defi nitions
(JF1)
PW_ON
Ground
Reset Button
Pin Defi nitions
(JF1)
Reset
Ground