Features: 1.For Laptop DDR5: This memory slot tester board fully supports laptop memory module of DDR5 series. 2.Memory Faults: The faults of computer memory module are mainly due to the dirty gold pins causing poor contact of the gold pins, wear of the gold pins, printed circuit board breakage, damage to the data line exclusion, open circuit and short circuit of the video memory, poor memory performance, etc. 3.120 LED: This laptop DDR5 test card uses 120 LED indicators to test all data lines of the memory, and the normal brightness is regarded as normal. When a hardware fault occurs in the loop of these data lines, relatively bright or no light is regarded as abnormal. 4.Accurate Indicator: If the test indicator flash, it means that the gold pins are in poor contact. If there is no indicator light, it means that the hardware has an open circuit failure. Check the wear of the gold finger, whether the resistance is damaged, whether the printed circuit board is broken, and whether the faulty CB circuit is open. 5.High Reliability: Find the faulty pin according to the pin number identification of the indicator light, and then use a multimeter to find out the specific fault cause. After the memory module hardware test passes, use an alternative method or use the corresponding test software to find the faulty video memory. specification:Item Type: Memory Slot Tester Board Material: Printed Circuit Board Battery Type: CR2032 Button Battery (Battery Not Included) Application: DDR5 Memory Module for Laptop PackageList:1 x Memory Slot Tester Board