User manual

H8QI6/i-F Serverboard User's Manual
2-8
2-7 Connector Defi nitions
Power Connectors
A 24-pin main power supply connector(JPW1)
and three 8-pin CPU PWR connectors
(JPW2/JPW3/JPW4) 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/JPW4 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 three 8-pin
power connectors. Be sure to connect these
connectors to the 24-pin (JPW1) and the
three 8-pin (JPW2,JPW3 and JPW4) power
connectors on the motherboard. Failure in
doing so will void the manufacturer warranty
on your power supply and motherboard.
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.
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.
Overheat/Fan Fail LED (OH)
Connect an LED to the OH connection on
pins 7 and 8 of JF1 to provide advanced
warning of chassis overheating or fan failure.
Refer to the table on the right for pin defi ni-
tions and status indicators.
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
Reset Button
Pin Defi nitions
(JF1)
Pin# Defi nition
3 Reset
4 Ground
Power Button
Pin Defi nitions
(JF1)
Pin# Defi nition
1 PW_ON
2 Ground
OH/Fan Fail
LED
Pin Defi nitions
(JF1)
Pin# Defi nition
7 Vcc
8 Control
OH/Fan Fail
LED Status
State Indication
Solid Overheat
Blinking Fan fail