TYAN S7105 - Installing the Power Supply

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2.12 Installing the Power Supply
There are three (3) power connectors on your S7105 motherboard. The S7105
supports EPS 12V power supply.
PWCN1: ATX 24-pin Main Power Connector
Signal Pin Pin Signal
VCC3
1 13
VCC3
VCC3
2 14
-12V
GND
3 15
GND
VCC5
4 16
PS_ON#
GND
5 17
GND
VCC5
6 18
GND
GND
7 19
GND
PWR_OK
8 20
RES
5VSB
9 21
VCC5
VCC12
10 22
VCC5
VCC12
11 23
VCC5
VCC3
12 24
GND
PWCN2/PWCN3: 8-pin ATX Power Connector
Signal Pin Pin Signal
GND 1 5 VCC12
GND 2 6 VCC12
GND 3 7 VCC12
GND 4 8 VCC12
NOTE:
1. You must unplug the power supply before plugging the power
cables to motherboard connectors.
2. Apply 5Vsb power supply with current support below 2A.