I'm not following what you're saying. This is a set of 2 new DDR4 DIMs installed into a new mobo with a new CPU. There is no other memory to be installed into it. I have tried using both modules and only one of the modules. The results are same results. A new graphics card was also installed. The only previously used parts are the HDDs and SSD as well as the PS, fans and case. I was suspicious of the start button on the case for a while. But, the problem still happens when the power button on the mobo is used. I have updated the BIOS to the latest version. I have been convinced that it has to be either a mobo or memory problem. It acts so much like a memory problem that I've become convinced that is what it is. I'm still open to suggestions as to how to diagnose and determine the cause of the trouble.
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Thanks for your question. The important part to focus on are the numbers before the period. As you mentioned this refers to the size, ranking and speed of a module. Both of the parts you mentioned are identical in specifications. Numbers following the period, or extension, are details for the manufacturer. Depending on the product they can help determine design process or where parts were manufactured.
Our only way to guarantee compatibility with multiple modules is by offering them in matched pairs where both the extension and part number are identical. That being said, as long as the specifications match, your system should not have any issues using both modules together.
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