1. Core function: primarily used to detect open (broken) and short circuit faults in the main chip (GPU) and various data bus channels of a computer graphics card.
2. Power supply mode: dual power supply mode, supports fast charging, mobile phone chargers, or power banks. Specifically designed for detecting faults such as graphics card not displaying, unstable display, screen distortion, or motherboard not recognizing the graphics card.
3. By observing the LED indicator status on the tester, without using a multimeter to measure the resistance to ground of each graphics card gold finger, it is possible to intuitively determine whether the fault is caused by gold finger detachment, PCB breakage, or an open or short circuit in the BGA (GPU main chip).
4. Equipped with two blue PCI-E (16X) graphics card slots and one green AGP graphics card slot, it can be compatible with and test desktop discrete graphics cards of different generations and interface types, offering wide applicability.
5. The indicator lights, whether on, off, or abnormally bright, can intuitively and accurately reflect the electrical abnormality status of specific pins.