8
ATX1: 20Pin ATX Power Supply Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
+3.3Vdc
11
+3.3Vdc
2
+3.3Vdc
12
-12Vdc
3
GND
13
GND
4
+5Vdc
14
PS-ON
5
GND
15
GND
6
+5Vdc
16
GND
7
GND
17
GND
8
PWR-OK
18
-5Vdc
9
+5VSby
19
+5Vdc
10
+12Vdc
20
+5Vdc
SMBus :
PIN
DESCRIPTION
1
+5V_DUAL
2
SMBCLK
3
SMBDATA
4
GND
USB1-4: Internal USB Connectors
PIN DESCRIPTION PIN DESCRIPTION
1
VCC
2
GND
3
DATA-
4
DATA+
5
DATA+
6
DATA-
7
GND
8
VCC
COM4
PIN
DESCRIPTION
1
RXD485#
2
3
4
TXD485#
ATX12V1 :
+12V MAIN POWER Connector
PIN
DESCRIPTION
1
+5V
2
GND
3
GND
4
+12V
I2C_1
PIN
DESCRIPTION
1
+5V_DUAL
2
PCH_GP38_PU
3
PCH_GP39_PU
4
GND
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