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Havocyesterday at 2:00 PM3 repliesview on HN

Got ECC udimm for my ddr4 server and was surprised to see it picking up errors occasionally (once every couple months). Likely from a weakness in one of the sticks. This far it’s always corrected it though so opted to keep them anyway (nobody wants to be minus 32gb in these trying memory times)

With normal sticks I’d not have know that there is a potential issue.


Replies

zargonyesterday at 2:45 PM

You should be able to get the stick replaced under warranty. Every memory manufacturer I have ever seen has a lifetime warranty. As long as you RMA it before replacements become unavailable.

wpmyesterday at 4:20 PM

Depending on your server's CPU sockets, reseating the CPU might help if they were ever swapped before (esp if you got the server used). I have a marginally bad RAM slot on one of my Supermicro X11 boards because my dumb ass dropped the CPU into the socket and bent a few pins. I bent them back, but you can only do so much and the furthest RAM slot won't work without throwing errors daily if I run it at 2400MHz.

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Aurornisyesterday at 3:44 PM

There 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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