A new method to measure the PCI slot performance. There are a lot of relays to connect with each of slot pins. It can measure PCI slot data lines, address line of resistance automatically. There is a LED display to check the resistance instead of using multimeter to monitor it. It can determine the PCI bus fault in actual position. It is easy, fast and accurate. You don't need to care memory data lines or address line location. It is a user-friendly device for computer maintenance and is a ideal tool for checking hardware.
