I'm prepping an iMac (27-inch Mid-2010) to give to someone, and have been testing RAM to make sure I only scrounged up good stuff. I have four 4GB SO-DIMMS, two for Hynix and two from Samsung, and with all of them installed I got a whole lot of RowHammer errors. When I RE-ARRANGED THEM WITHOUT REMOVING OR ADDING ANY (swapping pairs between banks and also swapping each pair side-to-side within the bank) all the errors went away.
The user I promised this machine to has waited patiently (so far) but I'd like to finish this. On the other hand I don't understand this result and don't know if I can trust this RAM. Why would moving DIMMs around cure RowHammer errors?
The user I promised this machine to has waited patiently (so far) but I'd like to finish this. On the other hand I don't understand this result and don't know if I can trust this RAM. Why would moving DIMMs around cure RowHammer errors?
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