User Guide

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