1. 目检:Chipset (Southbridge, Northbridge, I/O chip, GD75232, Sound chip), AC97, PWM... 是否有烧毁, USB, P/S2 Connector,PCI slot,AGP slot,ISA slot, CNR Slot, Chipset…是否有撞坏造成短路.
2. 触摸:打开电源触摸 Chipset 是否有发烫.
3. 电源不打开时,用电表检测那组电源短路,再决定移除短路电源有连接相关晶片,PWM,电阻电容..
4. Main chip 南北桥,I/O Chip, Sound chip, AC97, PWM…都移除短路没解开,建议换板.
*.注意: 3V&5V短路维修方法 Chipset 移除至短路解开再焊,不能移除一颗换上颗,有可能换上新 Chipset 因短路电源没解开, Turn on power chipset brunt out.
