Mmmmm, more RAM.

That said, I'm never 100% sure if I've got the sticks paired correctly. Should the matching pairs be in rows or in columns.

The System Report says that the 4GB sticks are in the same bank so that _seems_ right.

@mkelly Seems to be correct. Same modules on same bank, imho.

@mkelly But... it depends on the Mac model! On an iMac the RAM layout changed between 2015 and 2017. Regarding this, pairing is done wrong.


@phranck This is a late 2017 iMac. I’ll do a bit more digging. Should have checked the clock speed of the stock RAM before adding the new sticks.

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