Item Type: Laptop Memory Test Card_x000D_Battery: 1 x button battery CR2032 (battery not included)_x000D_Adaptation: Support for INTEL and for AMD motherboard with DDR5 interface, use light emitting diodes to indicate the open circuit and short circuit of data lines and address lines_x000D_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. 1FOR MAINBOARD TEST: The memory detection card supports for INTEL and for AMD motherboard with DDR5 interface, no external power supply required. 2WITH LED LIGHT: Use LED to indicate the open circuit and short circuit of data line and address line, and the operation is clear and convenient. 3MULTIPLE USAGES: Essential tool for repairing computer motherboard, detect mainboard failures such as no boot, no display, no memory reading, etc. 4APPLICABLE SCENES: Widely used to repair the motherboard that is not powered on, and the same motherboard can be used to determine the fault. 5GOOD PERFORMANCE: This motherboard detection card has a compact size, easy to use, with high accuracy and less interference, stable and reliable.1 x Memory Test CardDue to different motherboard designs, some lights may not light up.