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ATX1: ATX 20-pin Power Connector
Pin
Signal Name
1
+3.3V
2
+3.3V
3
Ground
4
+5V
5
Ground
6
+5V
7
Ground
8
PWRGD
9
+5VSB
10
+12V
ATX12V: ATX 12V Power Connector
Pin
Signal Name
1
Ground
2
Ground
3
+12V
4
+12V
Front Panel Connector
The front panel connector (PANEL1) provides a standard set of switch and LED connec-
tors commonly found on ATX or micro-ATX cases. Refer to the table below for informa-
tion:
Pin
Signal
1
HD_LED_P Hard disk LED+
3
HD_LED_N Hard disk LED-
5
RST_SW_N Reset Switch
7
RST_SW_P
9
RSVD
* MSG LED (dual color or single color)
Pin
Signal Name
11
+3.3V
12
-12V
13
Ground
14
PS ON#
15
Ground
16
Ground
17
Ground
18
-5V
19
+5V
20
+5V
Function
Pin
2
4
6
Reset Switch
8
Reserved
10 NC
Installing the Motherboard
Signal
Function
FP PWR/SLP *MSG LED+
FP PWR/SLP *MSG LED-
PWR_SW_P Power Switch
PWR_SW_N Power Switch
No pin
11
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