1、Wide Compatible: The computer memory tester is fully compatible with all DDR4 motherboards from for Intel and for AMD 2、Scope of Application: The computer memory tester with LED is used to repair motherboard failures such as no boot, no display, and no memory reading 3、Forward and Reverse: The motherboard tester supports forward and reverse slot interfaces, which meet your different daily needs 4、Indication Light: The desktop mainboard board tester with LED uses the light emitting diode on and off to indicate the open circuit and short circuit of the data line address line and other signals 5、Pay Attention: Due to the difference in motherboard design and chipset, some signals may be displayed differently. Please use the same motherboard to check the fault 1 x Computer Memory Tester1 x User Manual Item Type: Computer Memory TesterMaterial: PCBBattery Type: CR2032 Button Battery (delivered without battery)Applicable: Motherboards That Support All DDR4 Interfaces of for Intel and for AMD