Mainboard Installation
Page 11
Two 6-Pin Plugs
From AT Power Supply
Vertically Insert
For Installation
Place 2 Black Wires,
On Each Of The
Plug, Closed To The
Centre
Fig. 4 AT Power Connector Installation
ATX Power Connector
A single 20-pin connector incorporates standard
±
5V and
±
12V, optional 3.3V and soft-on/off signals. With
a power supply, that supports remote power on/off, the mainboard can turn off the system power through
software control, such as the shutdown in Windows 95 Start menu. The system BIOS will turn the system
power off when it receives the proper APM command from the OS. APM must be enabled in the system
BIOS and OS in order for the soft-off feature to work correctly.
Pin
Signal Name
Pin
Signal Name
1
+3.3V
11
+3.3V
2
+3.3V
12
-12V
3
Ground
13
Ground
4
+5V
14
PW_ON
5
Ground
15
Ground
6
+5V
16
Ground
7
Ground
17
Ground
8
PWRGOOD
18
-5V
9
+5VSB
19
+5V
10
+12V
20
+5V
From ATX
Regulated Power
Supply
ATX Power
Connector
Connector's Lock
(push to release)
Onboard
receptacle
Fig.5 ATX Power Connector Installation
