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Problem with DRAM - CMK16GX4M2B3200C16 2x8GB + 2x8GB

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I have problem with DRAM. I have pair of 8GB 3200Mhz RAM CMK16GX4M2B3200C16 bought in 2017 in version 5.39 and manufacture Hynix(CPU-Z). Now I bought next pair with same part number, BUT version is 3.31 and if I install with old pair  for 32GB(4x8GB) RAM, PC not boot. I have MSI B350 Tomahawk with Ryzen 7 5800X.  MSI have debugs led( lights CPU and DRAM leds) :( I try turn off X-AMP profile for 2133MHz and still not working.

Problem is version of DRAM? or im problem ? :D

Thank you very much

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the problem is mixing kits will usually not work.

You would have to get a single kit of 32gb to have matched sticks guaranteed to work together.

the kits part number can be the same, but the memory chips inside can be different, and have different timings (there are a lot more secondary timings than the ones showed on the box).


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