Device and method for detecting motherboard voltage

摘要

A voltage detecting device is provided to detect voltage value of a voltage identification (VID) module on a motherboard. The VID module has a plurality of VID module pins. The voltage detecting device includes a signal transforming module and a main control circuit. The signal transforming module is couple with the VID module. The main control circuit is connected to the signal transforming module. The main control circuit is capable of causing the signal transforming module to read voltage signal at each VID module pin, transforming each voltage signal to a group of binary data, decrypting each group of binary data to a corresponding binary level code, constructing a binary level code combination, and determining actual voltage value corresponding to the binary level code combination.