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PC Unstable after installing another 2x8GB of RAM.

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I just installed 2 sticks of 8GB 3200MHz RAM with my old 2 sticks of 8GB 3600MHz. I know the frequencies should be the same, and I'll probably end up returning them to get 2 more at 3600MHz, but I assumed it should work for now as long as I stay at 3200. However, every time I try to set it to 3200 my PC fans and lights will start, stop, start, stop, and then on the 3rd start it will post and reset my RAM clock to 2133. I tried downclocking to 1866 and it works fine, and it also works fine up to 2733, but when I go to 2800 it becomes unstable.

Here is my PC: https://pcpartpicker.com/user/IdkHelp/saved/rJXcYJ and I can get the RAM part numbers if they're needed.

So my questions are:

  • Is this just an issue of trying to use 3200 and 3600 together?
  • If I get 2 sticks of 3600 will I be able to run them at 3600, or at least 3200, or is this an issue with my CPU or mobo?
  • Should I be trying to run sticks from 2 different packages in the first place (I always thought it was ok as long as they're the same model, but I saw some people saying you shouldn't while I was trying to figure out if it's ok to mix frequencies)?
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You answered it. You shouldn't try to mix two kits even if the specs on the package or the part number are the same.

The best way to get your memory working at the advertised speed is to get it all in one kit.

Your PCpartspicker list is private, can't see it.. but depending on the CPU you have, it could be better to get 2x16gb instead of 4x8, for stability. worth looking up.

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