Fuhjythy Desktop Memory Stick Tester DDR4 Memory Tester with Light Multi-Function and Convenient Memory Detection Card Easy to Use

Two Power Supply Methods, More Convenient To Use, 3.6v Button Battery Power Supply, Type-C Interface Power Supply If The Indicator Light Flashes, It Means The Gold Finger Has Poor Contact. If The Indicator Light Does Not Light Up, It Means There Is An Open Circuit Fault. Check Whether The Gold Finger Is Dirty, The Resistor Is Damaged Or The Circuit Is Open. According To The Pin Number Of The Indicator Light, Use A Multimeter To Find The Fault Point. Desktop DDR4 Memory Test Card For Troubleshooting, The Test Switch. If All The Indicators Are On And The Brightness Is Consistent, It Means There Is No Fault In The Hardware Of The Memory Module. If One Or More Indicator Lights Are Particularly Bright, It Indicates A Short Circuit Fault.