COMMELL MS-C73 - Manual (Page 36)

MS-C73 User’s Manual
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2.14 <Power Supply and Fan Interface >
2.14.1 <Power Input>
MS-C73 provides a standard ATX power supply with 24-pin ATX connector and
additional 12V connector, The 4-pin additional power connector is optional for PCI
Express powering;; please connect this well before you finishing the system setup.
Connector: CN_12V
Type: 4-pin DC power connector
Pin Description Pin Description
1 Ground 2 Ground
3 +12V 4 +12V
Connector: ATX
Type: 20-pin ATX power connector
PIN assignment
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 5V 16 -PSON
5 GND 17 GND
6 5V 18 GND
7 GND 19 GND
8 PW_OK 20 N/C
9 5V_SB 21 5V
10 12V 22 5V
11 12V 23 5V
12 3.3V 24 GND
CN_12V
1 2
3 4
24 13
12 1
ATX