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S
S
UPER
ERVER 5015A-PHF User's Manual
5-9
Connector Defi nitions
Main ATX Power Supply
Connector
The 24-pin main power connector
(JPW1) is used to provide power to
the motherboard. This power connec-
tor meets the SSI EPS 12V specifi ca-
tion. See the table on the right for pin
defi nitions.
Processor Power Connector
The 4-pin processor power connec-
tor (J7) is also required to ensure
adequate power to the processor.
This power connector meets the SSI
EPS 12V specifi cation. See the table
on the right for pin defi nitions.
External Power Connector
In addition to the 24-pin main power
connector, the 4-pin External Power
connector at J8 is used to provide
power to external devices such as
hard disks & CD-ROM drives. This
power connector supports 12V and
5V devices.
Power Button
The Power Button connection is
located on pins 1 and 2 of JF1.
Momentarily contacting both pins
will power on/off the system. 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.
ATX Power 24-pin Connector
Pin Defi nitions
Pin#
Defi nition
13
+3.3V
14
-12V
15
COM
16
PS_ON
17
COM
18
COM
19
COM
20
Res (NC)
21
+5V
22
+5V
23
+5V
24
COM
Required Connection
4-pin Processor Power
Connector
Pin Defi nitions
Pins
1 and 2
3 and 4
Required Connection
4-Pin External Power
Connector
Pin Defi nitions
Pin
Defi nition
1
+12V
2
Ground 1
3
Ground 2
4
+5V
Optional Connection
Power Button
Pin Defi nitions (JF1)
Pin#
Defi nition
1
Power Signal
2
Ground
5-10
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
11
+12V
12
+3.3V
Defi nition
Ground
+12V
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