Desktop Mainboard Board DDR5 RAM Memory Slot tester.Through the process of starting up and read the RAM Memory, could indicate the faults in the mother board circuit for further repairing.
The fault could be reflected by the LED light, indicating open circuit or short circuit or data line and address line.
Usage:
Install the 3.3v (CR2032) battery on the tester, mainboard need not power on, press the button of the tester.
If the LEDs all light on and the brightness are all the same, the signal is all right ,there is no problem.
No light Or weak light signal there is problem, you should refer to sign indication beside that LED light .