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H8DSP-8/H8DSP-i User's Manual
2-6
Connecting Cables
Primary ATX Power Supply
Connector
The primary power supply connector
(J43) on the H8DSP-8/H8DSP-i is a
proprietary design with unique pinouts
and requires the correct proprietary
power supply to operate. Refer to the
table on the right for the pin defi nitions
of the J43 main power connector.
You must also connect the J15 power
connector to your power supply (see
below).
Secondary Power
Connector
In addition to the Primary ATX power
connector (above), the 10-pin power
connector at J15 must also be con-
nected to your power supply. See the
table on the right for pin defi nitions.
Note that the pin arrangement is dif-
ferent than usual, with pins 1 and 2 on
opposite sides.
NMI Button
The non-maskable interrupt button
header is located on pins 19 and 20
of JF1. Refer to the table on the right
for pin defi nitions.
Power LED
The Power LED connection is located
on pins 15 and 16 of JF1. Refer to the
table on the right for pin defi nitions.
ATX Power 20-pin Connector
Pin Defi nitions (J43)
Pin#
Defi nition
11
Ground
12
+5V
13
+5V
14
+3.3V
15
+3.3V
16
+5VSB
17
+12V
18
+12V
19
+12V
1
20
NC
Required Connection
Secondary Power Connector
Pin Defi nitions (J15)
Pin#
Defi nition
2
1
SMBus I
C Clock
2
3
SMBus I
C Data
5
Ground
7
Power On
9
NC
Required Connection
NMI Button
Pin Defi nitions (JF1)
Pin#
Defi nition
19
Control
20
Ground
Power LED
Pin Defi nitions (JF1)
Pin#
Defi nition
15
Vcc
16
Control
2-8
Pin #
Defi nition
1
Ground
2
Ground
3
Ground
4
Ground
5
Ground
6
Ground
7
Ground
8
+12V
2
9
+12V
2
10
+12V
1
Pin #
Defi nition
2
Ground
4
Power Fail
6
Power Good
8
-12V
10
No pin
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