Features 1、High Efficiency: The computer graphics card tester can quickly detect faults such as no display, blurry display, and unstable display without the need for individual measurements of the PCI bus interface between the graphics card and motherboard using a multimeter. It can accurately identify issues like short circuits and CPU failures with high accuracy rate, making it an essential tool for graphics card repairs. 2、Versatile Testing Capabilities: The graphics card tester diagnostic tool is specifically designed to test the data bus connections between the graphics card CPU and the computer motherboard's PCI interface for open circuits and short circuits. 3、Comprehensive Fault Diagnosis: When troubleshooting computer graphics card issues, the graphics card diagnostic analyzer tester allows technicians to inspect for burn marks, broken PCB traces, and abnormal voltages before conducting further tests. This comprehensive approach helps in identifying underlying problems accurately and efficiently. 4、Accurate Fault Localization: The graphics card tester with Light's indicator lights offer quick feedback on the condition of the graphics card, helping technicians pinpoint issues with the main CPU chip such as open circuits or short circuits. In case of any anomalies in the indicator lights, further confirmation using a multimeter can be done to accurately locate the fault points, ensuring thorough troubleshooting and repair. Specification Item Type: Graphics Card Tester with Light Material: PCB Voltage: DC12V Package List 1 x&nbsp;Graphics&nbsp;Card&nbsp;Tester&nbsp;<br>1 x Manual<br>1 x Data Cable