GUYUTING LED Computer Memory Tester & Signal Line Checker for Laptop Forward & Reverse Interfaces, Easy Fault Detection

GUYUTING LED Computer Memory Tester & Signal Line Checker for Laptop Forward & Reverse Interfaces, Easy Fault Detection Description

Features: This diagnostic card is used for laptop DDR4. It is support both the laptop forward and reverse interface and using lightness and darkness of lead to stand for the sign of data line address. It replace the traditional way and become more effective. Using patch components, no hurt to your hands. The computer memory tester with LED is used to repair motherboard failures. Reversed insertion or misinsert will not burn any parts after power on. It is a good choice to repair the computer notebook. Usages: Insert 3.3V(CR2032) battery into the tester card and then put the card into the matched on the computer's motherboard. Turn off the power, then the signal line is working if the lights is all works. If some of lights do not work, it indicates that the signal line is normal, if the light does not light or bright , Indicating that this signal has a short circuit fault, with a test to further determine the point of failure. Package Include: 1 x Tester Card