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psymac

macrumors 6502a
Original poster
Jul 17, 2002
550
164
Adding RAM to my 2017 iMac (Crucial, 16GB), and understand should be installed in pairs. OEM RAM is in slots 2 and 4 (Bank 0/DIMM1, Bank 1/DIMM1), so I should install in slots 1 and 3 to keep as matched pair, or move OEM to slots 3 and 4, and install new RAM to 1 and 2?

Thanks,
Steve
 
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