Features [DDR5 Memory] Compared to other memory, the DDR5 standard has higher performance and lower power consumption, so this test board is more practical. [No need for external power supply] The memory test card is compatible with all motherboards with DDR5 interface, no external power supply is required and easy to use. [Main Application] This test card can be used to repair motherboard failures, such as failure to boot, lack of screen and lack of memory reading. It is an essential tool for repairing computer motherboards. [Long service life] Our memory test card is made of thin PCB board, the surface is specially treated and has a long service life. [With indicator] There are LED lights to test on the test card, you can decide according to the brightness of the lights. Specification: Item Type: RAM Slot Test Card Material: PCB Battery: 1 x CR2032 button cell (excluded) Adaptation: DDR5 tester supports all motherboards with DDR5 interface and uses light-emitting diodes to indicate open circuit and short circuit of data line and steering line Uses: Used to repair motherboard failures, such as failure to boot, lack of screen and lack of memory reading. It is a must-have tool for repairing computer motherboards. Package List: 1 x RAM slot test card Tips: 1. When the DDR5 tester is testing the motherboard, the motherboard must be connected to the CPU and the test light will be on, because the signals from the memory part are connected to the CPU. 2. After the tester battery has been used many times, the brightness of the tester will be dimmed. At this time, the battery voltage is too low, and the battery must be replaced in time. 3. The various signals of this tester, due to the different motherboard and chipset designs of various motherboard manufacturers, some of the signals may be displayed differently. Use the same motherboard to compare and judge. 4. Desktop DDR5 currently has two types of interface on the market. When one side cannot be inserted into the memory slot for testing, switch to the other side for testing. 5. The memory on the motherboard varies according to usage, the names of the signals on the memory pins will change, but the arrangement of all pin numbers will not change, so the DDR5 light tester changes the name of the light to the pin number, It is convenient for customers to clearly know the pins with abnormal signals. 6. This light tester only supports memory hanging from the CPU. Package List 1 x RAM Memory Slot Tester Card