TYAN S7055 - Installing the Power Supply

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2.12 Installing the Power Supply
There are three (3) power connectors on your S7055 motherboard. The S7055
supports EPS 12V power supply.
J43: ATX 24-Pin Power Connector
Signal Pin Pin Signal
+3.3V
1 13 +3.3V
+3.3V
2 14 -12V
GND
3 15
GND
+5V
4 16 PS ON#
GND
5 17
GND
+5V 6 18 GND
GND 7 19 GND
Power OK
8 20 Reserve
+5VSB
9 21 +5
+12V
10 22 +5
+12V
11 23 +5
+3.3V
12 24 GND
J65/J28: SSI 8-Pin CPU0/CPU1 Power Connector
Signal Pin Pin Signal
GND 1 5 +12V
GND 2 6 +12V
GND 3 7 +12V
GND 4 8 +12V
J57: SSI 4-Pin PCIE Power Connector
Signal Pin Pin Signal
GND 1 3 +12V
GND 2 4 +12V
NOTE: You must unplug the power supply before plugging the power
cables to motherboard connectors.