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The original was posted on /r/unraid by /u/fom_info on 2023-09-16 20:49:17.
Sorry for the newb question, but wonder if anybody knows what's going to happen if I plug in 128GB of ECC RAM into my i3 8100 build? Will it not boot? Will it limit to 64 gigs? Will it magically work?
Intel claims that all i3s in 8th and 9th generations only support 64GB. My motherboard (Gigabyte C246-WU4) does support 128GB after a bios update. It only supported 64GB at launch, and not clear if the update to 128 happened due to newer CPUs, appearance of 32GB RAM sticks, better firmware, or something else.
I know that some CPU limits (such as the RAM frequency) are not hard limits, and my QNAP NAS happily accepted more RAM than it officially supports, so wondering if it might just work. If not, I'm planning to eventually update a a Xeon if/when the prices go down to reasonable levels, so debating whether I should get 128GB now that I found a good deal on it, or do 64GB and hope it'll be enough long-term.