Welcome to our store! Applicable Scene: This CPU tester is suitable for Intel LGA1150 interface motherboards and boasts excellent performance. With Test Lamp: Uses the light-emitting diode method to replace the traditional manual multimeter measurement. Applications: Used to test the open circuit and short circuit of the bus signal connecting the CPU socket on the motherboard and the northbridge. A Great Choice: Prevents damage to the CPU during maintenance or troubleshooting, making it a must-have for repairing and troubleshooting computer motherboards. Tips: Due to different motherboard designs and chipsets from various manufacturers, different signals from this tester may appear differently. Please use the same motherboard for troubleshooting and maintenance to judge the fault. Item Type: CPU Test Card Material: PCB Battery Type: Cr2032 button battery (shipped without battery) Applicable: for Intel LGA1150 interface motherboards 1 x CPU Test Card If you receive your item and find any product problems, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.