That is a crazy failure! I know it is very rare for Crucial memory to fail and to have two sticks fail in such a way is amazing (frustrating & disappointing for you obviously). I wonder if perhaps you might be starting to have a power supply or motherboard failure which might have somehow damaged your memory. It is amazing inexpensive no name Chinese memory actually works. I hope it will prove to be stable & reliable in the long run. I would advise running Memtest86 or Memtest86+ on it along with the Prime95 stress test option. I long ago vowed never to use anything but memory from proven name brand vendors such as Crucial. While some companies may use the same memory chips as Crucial, the support circuitry on the DIMMs may be subpar and cause problems. This always seemed to be the case for us years ago when we purchased lower priced memory. You should contact Crucial Support to see if they will replace your memory under warranty. I believe Crucial has a lifetime warranty on their memory. Due to the testing you have done and proving Chinese memory of all things is working in your system, I think you will be able to get them replaced. BTW, I forget if you mentioned it in your prior posts, but did you reset the memory settings in your motherboard's System Settings? Try Auto detect and did you try to manaully customize the settings to reflect the memory you have without trying to overclock or increase performance?
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