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this post was submitted on 04 Aug 2023
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Explain Like I'm Five
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From what i've read it's temperature dependent, and at room temp some dram cells might take as long as 10 seconds to decay. The 64mS refresh is a super conservative call because it's really bad when random bits go missing out of memory. The decay is faster at high temperatures, but some dram controllers might actually adjust based on temperature.
it is temperature dependent, if you change this refresh timing in the BIOS to the tightest possible value at a given temperature, you can easily make your PC crash by heating the RAM up a bit (for example by removing a fan)