RAM Diagnostic Tester Card, USB Charging Card for Fast RAM Testing in Laptops

1. APPLICABLE SCENARIO: Suitable for DDR5 and DDR4 memory maintenance testing, this device can easily troubleshoot various memory hardware failures. Using a light tube indicator, it replaces the traditional manual measurement method of a multimeter. The LED brightness indicator allows you to easily pinpoint the fault, enabling even computer novices to become memory maintenance experts. 2. Power Supply: This product offers dual power options. It can be powered by batteries (not included) or by inserting the standard Type-C cable into a charger or power bank. Batteries (not included) can be used for power and can be charged and discharged simultaneously. During charging, the light shows red, and when fully charged, the indicator light turns green. 3. Main Functions: This memory tester is used to test various faults caused by hardware open circuits and short circuits in memory, resolving problems such as poor graphics memory performance. 4. LED Light: The product uses LED lights to test the data cables in the memory. When hardware faults occur in these data cable circuits, the brightness of the LED indicator lights will change, whether they are particularly bright or not. Install the battery (not included) in the battery holder or use a Type-C cable to support fast charging. Insert the memory module to be tested into the memory tester slot. If the LEDs are lit and the brightness is consistent, it indicates that there is no circuit fault or short circuit in the data line circuit of memory module 5. Testing tips: If the indicator flashes during testing, it indicates a fault with the gold finger. If the LED does not light up, it indicates a circuit fault in the hardware. Check the gold finger for wear, whether the abrasion is damaged, and if the PCB circuit is clean. Identify the faulty pin based on the indicator LED's numerical reading, then use a multimeter to identify the specific cause of the fault. After successfully completing the hardware test of the memory module, poor graphics memory performance should be considered, and alternative methods or appropriate testing software should be used to locate the faulty graphics memory. SPEC: Item Type: RAM Memory Tester Card Material: PCB Battery: 1 x CR2032 battery (not included) Features: 1. Applicable to DDR4 or DDR5 laptops 2. Use patch assembly, no hand injuries 3. A good choice for repairing desktop and server computers Two Power Input Modes: 1. Type-C slot power input 2. CR2032 or LIR2032 battery (not included) Color: Red Instructions: Install and use directly. Package List: 1 x RAM Memory Tester Card 1 x USB Cable