Features [Long Service Life] Our memory test card is made of fine PCB board, the surface is specially treated, and has a long service life. [DDR5 Memory] Compared with other memory, the DDR5 standard has higher performance and lower power consumption, so this test board has more practicality. [No Need for External Power Supply] The memory test card supports all motherboards with DDR5 interface, no external power supply is required, and it is easy to use. [Main Application] This test card can be used to repair motherboard failures such as no boot, no display, and no memory reading. It is an essential tool for repairing computer motherboards. [With Indicator] There are LED lights for testing on the test card, you can decide according to the brightness of the lights. Specification: Item Type: RAM Memory Slot Tester Card Material: PCB Battery: 1 x coin cell CR2032 (excluded) Adaptation: The DDR5 tester supports all motherboards with DDR5 interface, and uses light emitting diodes to indicate the open circuit and short circuit of the data line and address line Uses: It is used to repair motherboard failures such as no boot, no display, and no memory reading. It is an essential tool for repairing computer motherboards. Package List: 1 x RAM Memory Slot Tester Card Note: 1. When the DDR5 tester is testing the motherboard, the motherboard must be plugged into the CPU, and the test light will be on, because the signals of the memory part are connected to the CPU.2. After the battery of the tester has been used for many times, the brightness of the tester will become dim. At this time, the battery voltage is too low, and the battery needs to be replaced in time.3. The various signals of this tester, due to the different motherboard designs and chipsets of various motherboard manufacturers, some of the signals may be displayed differently. Please use the same motherboard to compare and judge.4. Desktop DDR5 currently has two interface types on the market. When one side cannot be inserted into the memory slot for testing, please switch to the other side for testing.5. The memory on the motherboard varies according to the usage, the signal names on the memory pins will change, but the arrangement of all the 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 tester with light only supports the memory hanging on the CPU. Package List 1 x RAM Memory Slot Tester Card