2-8 Chapter 2
J4 - Power input Connectors Watch the pin number and the orientation
These have a specific orientation. The three warning marks indicate that if you
make a mistake in pin number or connection orientation, you could destroy your
equipment. During installation, you just need to connect to the correct pins and
in the correct orientation, and to connect connectors P8 and P9 of the power
supply unit to the connectors on the mainboard.
Pin number
Name of the signal or
signification
Pin number
Name of the signal or
signification
1 POWERGOOD 7 Ground
2 +5VDC 8 Ground
3 +12VDC 9 -5VDC
4 -12VDC 10 +5VDC
5 Ground 11 +5VDC
6 Ground 12 +5VDC
J3 - ATX Power input Connectors
These have a specific orientation. The three warning marks indicate that if you
make a mistake in pin number or connection orientation, you could destroy your
equipment. During installation, you just need to connect to the correct pins and
in the correct orientation, and to connect connector of the power supply unit to
the J3 connectors on the mainboard.
Pin number
Name of the signal or
signification
Pin number
Name of the signal or
signification
1 +3.3VDC 11 +3.3VDC
2 +3.3VDC 12 -12VDC
3 Ground 13 Ground
4 +5VDC 14 PS_ON
5 Ground 15 Ground
6 +5VDC 16 Ground
7 Ground 17 Ground
8 POWERGOOD 18 -5VDC
9 +5VDC 19 +5VDC
10 +12VDC 20 +5VDC
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