MOTHERBOARD South bridge bad way to judge

1. Play PCI A14 of the resistance, on the ground less than 80 Euro for the South Bridge bad.
2. Standby, South Bridge hot, bad for the bridge. 2. Standby, hot south bridge, the bridge bad. (Excluding AGP supply pipe damage.) (Excluding AGP power tube is damaged.)

3. South bridge around the filter capacitor to ground short circuit, the bridge bad. 3. South bridge around the filter capacitor to ground short circuit, the bridge bad.
4.USB the middle two data lines to ground resistance, the normal 600 or so, such as for 0, is the bridge bad. 4.USB the middle two data lines to ground resistance, the normal 600 or so such as for 0, is the bridge bad.
5.CMOS foot jumper middle ground short circuit. 5.CMOS foot jumper middle ground short circuit. To bridge bad. Bad for the bridge.
6.1117 middle leg 3.3VSB. 6.1117 middle leg 3.3VSB. No voltage, bad for the bridge. No voltage, bad for the bridge. (Excluding integrated card and I / O) (Excluding integrated card and I / O)
7.1117 foot middle ground short circuit, the bridge bad. 7.1117 foot middle ground short circuit, the bridge bad.