Gigabyte GA-8S648 - Page 24

- 20 -GA-8S648(-L) Motherboard
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3) ATX_12V (+12V Power Connector)
This connector (ATX _12V) suppliesthe CPU operation voltage (Vcore). If this " ATX_ 12V connector" is
not connected, system cannot boot.
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
3
1
4
2
4) ATX (ATX Power)
AC power cord should only be connected to your power supply unit after ATX power cable and other
related devices are firmly connected to the mainboard.
Pin No. Definition
1 3.3V
2 3.3V
3 GND
4 VCC
5 GND
6 VCC
7 GND
8 Power Good
9 5V SB(stand by +5V)
10 +12V
11 3.3V
12 -12V
13 GND
14 PS_ON(softOn/Off)
15 GND
16 GND
17 GND
18 -5V
19 VCC
20 VCC
1
10
20
11