alt Hacker NewsThere should not be errors during normal use at rated speeds.
With non-ECC RAM running a memory test and getting any errors means it’s not stable. The memory tests run at maximum bandwidth constantly so a few days of full bandwidth memory testing might produce as many transmissions as your months of regular server use. Seeing bit errors (even if corrected) means something is not right.
The ECC can correct it for a while but I would want to RMA that stick if it’s in warranty.
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Alas this is white label mem off eBay and fair bit of time has elapsed so not confident exchange would work. Minor miracle the ECC works at all given that
At some point I should try running it at slightly lower speed i guess. It’s very hard to troubleshoot something that only happens every month or two though
Never seen it fail a memtest but I can see it in the ECC stats since those cover weeks/months.
That was true in DDR4 but I understand DDR5 has pushed density so far that you do get errors in normal modules - like early LCD panels that were expected to have a few stuck pixels - and therefore ECC should really be mandatory.