Abit IT5A User Manual page 19

Installing the Mainboard
ATXPWR - 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 the power supply unit to the connector on
the mainboard.
Pin number
1
2
3
4
5
6
7
8
9
10
Fig 2-2 Mechanics of Mouse/Keyboard/USB/COM1/COM2/LPT
Name of the signal or
signification
+3.3VDC
+3.3VDC
Ground
+5VDC
Ground
+5VDC
Ground
POWERGOOD
+5VDC
+12VDC
Pin number Name of the signal or
11
12
13
14
15
16
17
18
19
20
2- 7
signification
+3.3VDC
-12VDC
Ground
PS_ON
Ground
Ground
Ground
-5VDC
+5VDC
+5VDC