1. DDR5 doubles the memory read speed to 6.4 Gbps, while also greatly increasing memory capacity. DDR5 bandwidth for DDR4 twice, module fer rate can reach 4.8 Gbps , faster than DDR4 existing module 3.2 Gbps 50%, fer rate is expected to reach 6.4 GbpSo 2. DDR5 device internal operating voltage of 1.1V, more power-efficient than DDR4's 1.2V. DDR5 form factor to maintain the same number of 288 pins as DDR4, but the definition is different, not compatible with DDR4 slot. 3. DDR5 tester all support for , for AMD all DDR5 interface motherboard, with light-emitting diodes to indicate the data line, address line open and short circuit, used to repair not boot, not display, not read the memory and other motherboard failure, is a tool to repair the computer motherboard. 4. Instructions for use.(CR2032,3V) battery into the battery holder of the test card, and the tester into the DDR5 model on the motherboard, and then the motherboard installed CPU, press the key switch on the test card, you can judge the motherboard memory part of the open circuit, short-circuit fault. 5. If a LED is not lit, find the number of pins corresponding to the LED, to continue to find the memory slot and CPU block is open and shorted to ground, whether the memory slot is , etc. If a LED is particularly bright, it is necessary to check whether this signal is shorted with the power supply The product be upgraded constantly,the appearance and color may be changed,please don't mind.And take a consideration before place the order Cautions. 1: DDR5 tester in testing the motherboard,the motherboard must be plugged into the CPU,the test light be on, because the memory part of the signal is connected to the CPU 2: After the tester battery is used for many times,the tester brightness becomes dark,then the battery voltage is too low, you need to replace the battery in time 3: This tester of signals,due to the motherboard design