Chapter 2: Installation
2-7
Power LED
The Power LED connection is lo-
cated on pins 15 and 16 of JF2.
Refer to the table on the right for
pin definitions.
2-5
Connecting Cables
ATX Power Connection
The motherboard has the 20-pin
connector. See the tables on the
right for pin definitions.
Pins
1 thru 4
5 thru 8
Definition
Ground
+12v
8-Pin +12v Power Supply
Connector (J15)
AT X Pow er Supply 20-pin Connector
Pin N umber Definition
11 +3.3V
12
-12V
13 CO M
14
PS_O N
15
CO M
16
CO M
17
CO M
18
-5V
19
+5V
20
+5V
Pin Number Definition
1 +3.3V
2
+3.3V
3
CO M
4
+5V
5
COM
6
+5V
7
CO M
8
PW -O K
9
5VSB
10
+12V
NMI Button
The non-maskable interrupt button
header is located on pins 19 and
20 of JF2. Refer to the table on
the right for pin definitions.
Pin
Number
19
20
Definition
Control
Ground
NMI Button Pin
Definitions (JF2)
Pin
Number
15
16
Definition
Vcc
Control
PW R_LED Pin Definitions
(JF2)
PWR_SEC Connection
In addition to the Primary ATX
p o w e r c o n n e c t o r ( a b o v e ) , t h e
Secondary 12v 8-pin J15 connec-
tor must also be connected to
your power supply. See the table
on the right for pin definitions.
HDD LED
The HDD LED (for IDE and SCSI
Disk Drives) connection is located
on pins 13 and 14 of JF2. Attach
the IDE hard drive LED cable to
these pins to display disk activity.
Refer to the table on the right for
pin definitions.
H DD LED Pin
Definitions
(JF2)
Pin
Number
13
14
Definition
Vcc
HD Active
