High quality, high effective and high stability. Display the error code by the result of TQST, then you could soon determine the error in error code table. Monitoring whether the card itself is fault or not permanently. And it will also inform users with the codes when there is something wrong with the cards itself so that avoid misleading users because of the fault of card itself CPU did not work leading to inability of traditional diagnostic card, the diagnostic card can help you find the reason the traditional diagnostic card doesn't work, you can continue to test the motherboard with traditional diagnostic card after troubleshooting. The diagnostic card do not need new version information of BIOS, meaning of codes is clear, accurate and complete. It can monitor characteristics of post code of BIOS the whole process and reduce the misleading to users caused by traditional diagnostic cards. Completely break the limitations of function of traditional diagnostic cards, not only the standard interface of PCD, but also innovate various auxiliary security parts of improving te accuracy and reliability. Stability test card can tell you whether your computer is stable or not, no matter your computer works stable or unstable. And it also can help find the factors, not matter are invariable factors or variable factor as occasional and invisible potential factors.