Biostar PT880 Pro-A7 Combo Manual page 16

PT880 Pro-A7 Combo
JKBV1: Power Source Header for PS/2 Keyboard and Mouse
Note:
In order to support this function "Power-on system via keyboard and mouse", "JKBV1"
jumper cap should be placed on Pin 2-3.
JATXPWR1: ATX Power Source Connector
This connector allows user to connect 20-pin power connector on the ATX
power supply.
1 3
1 3
+5V for PS/2 keyboard and
mouse.
1 3
PS/2 keyboard and mouse are
powered by +5V standby
voltage.
Pin
1
2
3
4
5
10 20
6
7
8
9
10
11
12
13
14
1 11
15
16
17
18
19
20
14
Pin 1-2 Close
(default)
Pin 2-3 Close
Assignment
+3.3V
+3.3V
Ground
+5V
Ground
+5V
Ground
PW_OK
Standby Voltage
+5V
+12V
+3.3V
DETECT
+3.3V
PS_ON
Ground
Ground
Ground
-5V
+5V
+5V