Gigabyte GA-8IG1000MT User Manual page 24

1) ATX_12V (+12V Power Connector)
This connector (ATX_12V) supplies the CPU operation voltage (Vcore).
If this "ATX_12V connector" is not connected, system cannot boot.
2) 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.
GA-8IG1000MT Motherboard
Pin No.
1
2
1
2
3
4
3
4
Pin No.
1
2
3
4
11
1
5
6
7
8
9
10
11
12
13
14
20
10
15
16
17
18
19
20
- 20 -
Definition
GND
GND
+12V
+12V
Definition
3.3V
3.3V
GND
VCC
GND
VCC
GND
Power Good
5V SB (stand by +5V)
+12V
3.3V
-12V
GND
PS_ON(soft on/off)
GND
GND
GND
-5V
VCC
VCC