14 | Chapter 2: Hardware installation
BIH11-AHA User’s Manual
2.7 Headers & Connectors
ATXPWR1: ATX Power Source Connector
For better compatibility, we recommend to use a standard ATX 24-pin power supply for this
connector. Make sure to find the correct orientation before plugging the connector.
Pin Assignment
Pin Assignment
13
+3.3V
1
+3.3V
14
-12V
2
+3.3V
15
Ground
3
Ground
16
PS_ON
4
+5V
17
Ground
5
Ground
18
Ground
6
+5V
19
Ground
7
Ground
20
NC
8
PW_OK
21
+5V
9
Standby 5V
22
+5V
10
+12V
23
+5V
11
+12V
24
Ground
12
+3.3V
ATXPWR2: ATX Power Source Connector
The connector pr12V to the CPU power circuit.
Pin Assignment
1
+12V
2
+12V
3
Ground
4
Ground
JPANEL1: Front Panel Header
This connector includes Power-on, Reset, HDD LED and Power LED connections. It allows user
to connect the PC case’s front panel switch functions.
Pin Assignment Function Pin Assignment
Function
1
N/A
N/A
2
Power LED (+) Power
LED
3
SATA_LED (+)
HDD LED
4
5
SATA LED (-)
6
Power LED (-)
7
Ground
Reset
Button
8
Power Button
Power-On
Button
9
Reset Control
10 Ground
