Description：
This diagnostic card is used for laptop DDR4/DDR5. 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.
Features：
1.Suitable for laptop DDR4/DDR5 .
2.Using patch components, no hurt to your hands.
3.Reversed insertion or misinsert will not burn any parts after power on.
4. It is a good choice to repair the computer notebook.
Memory tester product introduction:
Aiming at the hardware failure points of memory, our company has developed this DDR5 (DDR4 )memory maintenance tester, which can easily solve various failures of memory hardware, and use the method of light-emitting tube indication to replace the traditional manual measurement method with a multimeter. The tester uses 120 indicator lights (105 indicator lights for DDR4) to measure each data line of the memory, and easily find the fault point according to the LED brightness indication. In conjunction with the video memory test software, a computer novice can also become a top memory repair expert.
Instructions for use：
1: Insert the equipped battery (CR2032, 3.6V) into the battery holder of the test card, and insert the memory stick that needs to be repaired into the slot of the memory tester. Hardware is fault free. If the indicator light flashes, it means that the gold finger is in poor contact. If the indicator light is off, it means there is an open circuit fault. Check whether the gold finger is dirty, the resistance is damaged or the circuit is open circuit. According to the pin number of the indicator light, use a multimeter. Find the point of failure. If one or more of the LEDs are particularly lit, there is a short circuit fault.
2: After the hardware test of the memory module is passed, the fault of the video memory should be considered, and the faulty video memory should be found by replacing one by one or testing with the corresponding test software.
Package Included：
1 x Tester Card